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272075437 = 312283117
BaseRepresentation
bin10000001101111…
…000101010101101
3200221221212100001
4100031320222231
51024122403222
642555304301
76512413564
oct2015705255
9627855301
10272075437
1112a641337
127714b091
13444a16aa
14281c4bdb
1518d44e27
hex10378aad

272075437 has 6 divisors (see below), whose sum is σ = 281136174. Its totient is φ = 263297880.

The previous prime is 272075423. The next prime is 272075443. The reversal of 272075437 is 734570272.

It can be written as a sum of positive squares in only one way, i.e., 270964521 + 1110916 = 16461^2 + 1054^2 .

It is a de Polignac number, because none of the positive numbers 2k-272075437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 272075396 and 272075405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272075417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140598 + ... + 142519.

It is an arithmetic number, because the mean of its divisors is an integer number (46856029).

Almost surely, 2272075437 is an apocalyptic number.

It is an amenable number.

272075437 is a deficient number, since it is larger than the sum of its proper divisors (9060737).

272075437 is an equidigital number, since it uses as much as digits as its factorization.

272075437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283179 (or 283148 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 272075437 is about 16494.7093639142. The cubic root of 272075437 is about 647.9822533942.

The spelling of 272075437 in words is "two hundred seventy-two million, seventy-five thousand, four hundred thirty-seven".

Divisors: 1 31 961 283117 8776627 272075437