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272111930 = 25292114447
BaseRepresentation
bin10000001110000…
…001100100111010
3200222000201101122
4100032001210322
51024130040210
643000145242
76512625146
oct2016014472
9628021348
10272111930
1112a6667a2
1277168222
13444b519c
14281d4226
1518d50b55
hex1038193a

272111930 has 32 divisors (see below), whose sum is σ = 509207040. Its totient is φ = 104569920.

The previous prime is 272111921. The next prime is 272111933. The reversal of 272111930 is 39111272.

It is a self number, because there is not a number n which added to its sum of digits gives 272111930.

It is not an unprimeable number, because it can be changed into a prime (272111933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58967 + ... + 63413.

It is an arithmetic number, because the mean of its divisors is an integer number (15912720).

Almost surely, 2272111930 is an apocalyptic number.

272111930 is a deficient number, since it is larger than the sum of its proper divisors (237095110).

272111930 is a wasteful number, since it uses less digits than its factorization.

272111930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 272111930 is about 16495.8155300064. The cubic root of 272111930 is about 648.0112230058.

The spelling of 272111930 in words is "two hundred seventy-two million, one hundred eleven thousand, nine hundred thirty".

Divisors: 1 2 5 10 29 58 145 211 290 422 1055 2110 4447 6119 8894 12238 22235 30595 44470 61190 128963 257926 644815 938317 1289630 1876634 4691585 9383170 27211193 54422386 136055965 272111930