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70917389904 = 24310918174887
BaseRepresentation
bin100001000001100000…
…0010111111001010000
320210001100120200020110
41002003000113321100
52130214322434104
652325021441320
75060253603534
oct1020300277120
9223040520213
1070917389904
1128092021749
12118b2110240
1368c251c40a
14360a7bbbc4
151ca0e24e89
hex1083017e50

70917389904 has 80 divisors (see below), whose sum is σ = 185907962240. Its totient is φ = 23292541440.

The previous prime is 70917389897. The next prime is 70917389911. The reversal of 70917389904 is 40998371907.

It is an interprime number because it is at equal distance from previous prime (70917389897) and next prime (70917389911).

It is a super-2 number, since 2×709173899042 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909549 + ... + 984435.

It is an arithmetic number, because the mean of its divisors is an integer number (2323849528).

Almost surely, 270917389904 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 70917389904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92953981120).

70917389904 is an abundant number, since it is smaller than the sum of its proper divisors (114990572336).

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

70917389904 is a wasteful number, since it uses less digits than its factorization.

70917389904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75188 (or 75182 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 70917389904 in words is "seventy billion, nine hundred seventeen million, three hundred eighty-nine thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 48 109 181 218 327 362 436 543 654 724 872 1086 1308 1448 1744 2172 2616 2896 4344 5232 8688 19729 39458 59187 74887 78916 118374 149774 157832 224661 236748 299548 315664 449322 473496 599096 898644 946992 1198192 1797288 3594576 8162683 13554547 16325366 24488049 27109094 32650732 40663641 48976098 54218188 65301464 81327282 97952196 108436376 130602928 162654564 195904392 216872752 325309128 391808784 650618256 1477445623 2954891246 4432336869 5909782492 8864673738 11819564984 17729347476 23639129968 35458694952 70917389904