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83597057261381 = 1009142495814541
BaseRepresentation
bin10011000000011111110100…
…111001101111111101000101
3101221222210121122200202002002
4103000133310321233331011
541424123233124331011
6453443542525155045
723415455003266526
oct2300376471577505
9357883548622062
1083597057261381
11247003494a9324
1294618053bba85
133785226766661
141690194d9284d
1599e8409b7c3b
hex4c07f4e6ff45

83597057261381 has 8 divisors (see below), whose sum is σ = 83685795735000. Its totient is φ = 83508330447360.

The previous prime is 83597057261359. The next prime is 83597057261383. The reversal of 83597057261381 is 18316275079538.

It can be written as a sum of positive squares in 4 ways, for example, as 22624853520481 + 60972203740900 = 4756559^2 + 7808470^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83597057261381 - 234 = 83579877392197 is a prime.

It is a super-2 number, since 2×835970572613812 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83597057261383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11469971 + ... + 17284511.

It is an arithmetic number, because the mean of its divisors is an integer number (10460724466875).

Almost surely, 283597057261381 is an apocalyptic number.

It is an amenable number.

83597057261381 is a deficient number, since it is larger than the sum of its proper divisors (88738473619).

83597057261381 is a wasteful number, since it uses less digits than its factorization.

83597057261381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5829799.

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 83597057261381 in words is "eighty-three trillion, five hundred ninety-seven billion, fifty-seven million, two hundred sixty-one thousand, three hundred eighty-one".

Divisors: 1 1009 14249 5814541 14377241 5866871869 82851394709 83597057261381