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57820015037 = 113511681549
BaseRepresentation
bin110101110110010101…
…110110100110111101
312112020120120002120102
4311312111312212331
51421403410440122
642321231330445
74114556006261
oct656625664675
9175216502512
1057820015037
11225809890a4
12b257980a25
1355b5c15a65
142b271460a1
15178618b492
hexd765769bd

57820015037 has 4 divisors (see below), whose sum is σ = 58331696700. Its totient is φ = 57308333376.

The previous prime is 57820014979. The next prime is 57820015051. The reversal of 57820015037 is 73051002875.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1302560281 + 56517454756 = 36091^2 + 237734^2 .

It is a cyclic number.

It is not a de Polignac number, because 57820015037 - 216 = 57819949501 is a prime.

It is a super-2 number, since 2×578200150372 (a number of 22 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 (57820015237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255840662 + ... + 255840887.

It is an arithmetic number, because the mean of its divisors is an integer number (14582924175).

Almost surely, 257820015037 is an apocalyptic number.

It is an amenable number.

57820015037 is a deficient number, since it is larger than the sum of its proper divisors (511681663).

57820015037 is a wasteful number, since it uses less digits than its factorization.

57820015037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511681662.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 57820015037 in words is "fifty-seven billion, eight hundred twenty million, fifteen thousand, thirty-seven".

Divisors: 1 113 511681549 57820015037