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151211230 = 25373491171
BaseRepresentation
bin10010000001101…
…00110011011110
3101112112022210221
421000310303132
5302202224410
623000551554
73514163032
oct1100646336
9345468727
10151211230
117839a265
12427825ba
1325434301
14161221c2
15d41d4da
hex9034cde

151211230 has 32 divisors (see below), whose sum is σ = 280576800. Its totient is φ = 58631040.

The previous prime is 151211189. The next prime is 151211257. The reversal of 151211230 is 32112151.

It is a super-2 number, since 2×1512112302 = 45729672156225800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128545 + ... + 129715.

It is an arithmetic number, because the mean of its divisors is an integer number (8768025).

Almost surely, 2151211230 is an apocalyptic number.

151211230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151211230 is a deficient number, since it is larger than the sum of its proper divisors (129365570).

151211230 is a wasteful number, since it uses less digits than its factorization.

151211230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 151211230 is about 12296.7975505820. The cubic root of 151211230 is about 532.7555900867.

Adding to 151211230 its reverse (32112151), we get a palindrome (183323381).

The spelling of 151211230 in words is "one hundred fifty-one million, two hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 37 74 185 349 370 698 1171 1745 2342 3490 5855 11710 12913 25826 43327 64565 86654 129130 216635 408679 433270 817358 2043395 4086790 15121123 30242246 75605615 151211230