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70700056280 = 23571714852953
BaseRepresentation
bin100000111011000001…
…1010011111011011000
320202111012121222112222
41001312003103323120
52124243203300110
652251255323212
75052004364030
oct1016603237330
9222435558488
1070700056280
1127a9037a787
1211851380508
1368894a6539
1435c99a68c0
151c8bce4c55
hex10760d3ed8

70700056280 has 64 divisors (see below), whose sum is σ = 192494283840. Its totient is φ = 22814134272.

The previous prime is 70700056277. The next prime is 70700056283. The reversal of 70700056280 is 8265000707.

It is an interprime number because it is at equal distance from previous prime (70700056277) and next prime (70700056283).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 70700056280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70700056283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7421717 + ... + 7431236.

It is an arithmetic number, because the mean of its divisors is an integer number (3007723185).

Almost surely, 270700056280 is an apocalyptic number.

70700056280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70700056280 is an abundant number, since it is smaller than the sum of its proper divisors (121794227560).

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

70700056280 is a wasteful number, since it uses less digits than its factorization.

70700056280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14852988 (or 14852984 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

Adding to 70700056280 its reverse (8265000707), we get a palindrome (78965056987).

The spelling of 70700056280 in words is "seventy billion, seven hundred million, fifty-six thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 17 20 28 34 35 40 56 68 70 85 119 136 140 170 238 280 340 476 595 680 952 1190 2380 4760 14852953 29705906 59411812 74264765 103970671 118823624 148529530 207941342 252500201 297059060 415882684 505000402 519853355 594118120 831765368 1010000804 1039706710 1262501005 1767501407 2020001608 2079413420 2525002010 3535002814 4158826840 5050004020 7070005628 8837507035 10100008040 14140011256 17675014070 35350028140 70700056280