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152981228 = 22329911593
BaseRepresentation
bin10010001111001…
…00111011101100
3101122212020210102
421013210323230
5303130344403
623102530232
73535214261
oct1107447354
9348766712
10152981228
1179399074
1243296978
1325903b4a
1416463268
15d66cb88
hex91e4eec

152981228 has 12 divisors (see below), whose sum is σ = 267821400. Its totient is φ = 76460832.

The previous prime is 152981197. The next prime is 152981239. The reversal of 152981228 is 822189251.

It is a super-2 number, since 2×1529812282 = 46806512240775968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 152981191 and 152981200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7400 + ... + 18992.

It is an arithmetic number, because the mean of its divisors is an integer number (22318450).

Almost surely, 2152981228 is an apocalyptic number.

It is an amenable number.

152981228 is a deficient number, since it is larger than the sum of its proper divisors (114840172).

152981228 is a wasteful number, since it uses less digits than its factorization.

152981228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14896 (or 14894 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 152981228 is about 12368.5580404508. The cubic root of 152981228 is about 534.8262492228.

The spelling of 152981228 in words is "one hundred fifty-two million, nine hundred eighty-one thousand, two hundred twenty-eight".

Divisors: 1 2 4 3299 6598 11593 13196 23186 46372 38245307 76490614 152981228