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52310919 = 33143103127
BaseRepresentation
bin1100011110001…
…1001110000111
310122102200002110
43013203032013
5101342422134
65105112103
71203430653
oct307431607
9118380073
1052310919
1127589a71
1215628633
13aab720b
146d39a63
1548d47e9
hex31e3387

52310919 has 32 divisors (see below), whose sum is σ = 74973184. Its totient is φ = 32387040.

The previous prime is 52310897. The next prime is 52310927. The reversal of 52310919 is 91901325.

It is not a de Polignac number, because 52310919 - 28 = 52310663 is a prime.

It is a super-2 number, since 2×523109192 = 5472864493249122, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52310959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411834 + ... + 411960.

It is an arithmetic number, because the mean of its divisors is an integer number (2342912).

Almost surely, 252310919 is an apocalyptic number.

52310919 is a deficient number, since it is larger than the sum of its proper divisors (22662265).

52310919 is a wasteful number, since it uses less digits than its factorization.

52310919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 52310919 is about 7232.6287752103. The cubic root of 52310919 is about 373.9935537032.

The spelling of 52310919 in words is "fifty-two million, three hundred ten thousand, nine hundred nineteen".

Divisors: 1 3 31 43 93 103 127 129 309 381 1333 3193 3937 3999 4429 5461 9579 11811 13081 13287 16383 39243 137299 169291 405511 411897 507873 562483 1216533 1687449 17436973 52310919