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70750000000 = 2759283
BaseRepresentation
bin100000111100100000…
…1110101001110000000
320202121200121101110101
41001321001311032000
52124344000000000
652300242012144
75053152035401
oct1017101651600
9222550541411
1070750000000
1128006592189
1211866047054
136896942134
1435d24879a8
151c913ace6a
hex1079075380

70750000000 has 160 divisors (see below), whose sum is σ = 176806622520. Its totient is φ = 28200000000.

The previous prime is 70749999979. The next prime is 70750000001. The reversal of 70750000000 is 5707.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70750000001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 249999859 + ... + 250000141.

Almost surely, 270750000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70750000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88403311260).

70750000000 is an abundant number, since it is smaller than the sum of its proper divisors (106056622520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70750000000 is an frugal number, since it uses more digits than its factorization.

70750000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 245, while the sum is 19.

Adding to 70750000000 its reverse (5707), we get a palindrome (70750005707).

The spelling of 70750000000 in words is "seventy billion, seven hundred fifty million", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 283 320 400 500 566 625 640 800 1000 1132 1250 1415 1600 2000 2264 2500 2830 3125 3200 4000 4528 5000 5660 6250 7075 8000 9056 10000 11320 12500 14150 15625 16000 18112 20000 22640 25000 28300 31250 35375 36224 40000 45280 50000 56600 62500 70750 78125 80000 90560 100000 113200 125000 141500 156250 176875 181120 200000 226400 250000 283000 312500 353750 390625 400000 452800 500000 566000 625000 707500 781250 884375 905600 1000000 1132000 1250000 1415000 1562500 1768750 1953125 2000000 2264000 2500000 2830000 3125000 3537500 3906250 4421875 4528000 5000000 5660000 6250000 7075000 7812500 8843750 10000000 11320000 12500000 14150000 15625000 17687500 22109375 22640000 25000000 28300000 31250000 35375000 44218750 50000000 56600000 62500000 70750000 88437500 110546875 113200000 125000000 141500000 176875000 221093750 250000000 283000000 353750000 442187500 552734375 566000000 707500000 884375000 1105468750 1415000000 1768750000 2210937500 2830000000 3537500000 4421875000 7075000000 8843750000 14150000000 17687500000 35375000000 70750000000