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70980134624 = 257325432
BaseRepresentation
bin100001000011010111…
…1101110011011100000
320210012201122102210222
41002012233232123200
52130331403301444
652335142342212
75061645122000
oct1020657563340
9223181572728
1070980134624
1128114487793
121190b12a968
13690251a779
143614c72000
151ca66baeee
hex1086bee6e0

70980134624 has 72 divisors (see below), whose sum is σ = 163028703600. Its totient is φ = 30408095424.

The previous prime is 70980134623. The next prime is 70980134683. The reversal of 70980134624 is 42643108907.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a super-2 number, since 2×709801346242 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70980134623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27910697 + ... + 27913239.

It is an arithmetic number, because the mean of its divisors is an integer number (2264287550).

Almost surely, 270980134624 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 70980134624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81514351800).

70980134624 is an abundant number, since it is smaller than the sum of its proper divisors (92048568976).

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

70980134624 is an frugal number, since it uses more digits than its factorization.

70980134624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117 (or 2552 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 70980134624 in words is "seventy billion, nine hundred eighty million, one hundred thirty-four thousand, six hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 343 392 686 784 1372 1568 2543 2744 5086 5488 10172 10976 17801 20344 35602 40688 71204 81376 124607 142408 249214 284816 498428 569632 872249 996856 1744498 1993712 3488996 3987424 6466849 6977992 12933698 13955984 25867396 27911968 45267943 51734792 90535886 103469584 181071772 206939168 316875601 362143544 633751202 724287088 1267502404 1448574176 2218129207 2535004808 4436258414 5070009616 8872516828 10140019232 17745033656 35490067312 70980134624