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235230005557 = 2155710912001
BaseRepresentation
bin1101101100010011001…
…1010000100100110101
3211111011120202101202001
43123010303100210311
512323222340134212
6300021351215301
722665135025321
oct3330463204465
9744146671661
10235230005557
1190840229878
123970a077531
131924a0a4801
14b556d80981
1561bb2d9657
hex36c4cd0935

235230005557 has 4 divisors (see below), whose sum is σ = 235240939116. Its totient is φ = 235219072000.

The previous prime is 235230005551. The next prime is 235230005579. The reversal of 235230005557 is 755500032532.

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 41003820036 + 194226185521 = 202494^2 + 440711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-235230005557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235230005551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5434444 + ... + 5477557.

It is an arithmetic number, because the mean of its divisors is an integer number (58810234779).

Almost surely, 2235230005557 is an apocalyptic number.

It is an amenable number.

235230005557 is a deficient number, since it is larger than the sum of its proper divisors (10933559).

235230005557 is a wasteful number, since it uses less digits than its factorization.

235230005557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10933558.

The product of its (nonzero) digits is 157500, while the sum is 37.

The spelling of 235230005557 in words is "two hundred thirty-five billion, two hundred thirty million, five thousand, five hundred fifty-seven".

Divisors: 1 21557 10912001 235230005557