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156354142 = 27313131151
BaseRepresentation
bin10010101000111…
…00011001011110
3101220012121120011
421110130121132
5310011313032
623303113434
73605662660
oct1124343136
9356177504
10156354142
11802921aa
124444287a
1326515159
1416aa0530
15dad7247
hex951c65e

156354142 has 32 divisors (see below), whose sum is σ = 277807104. Its totient is φ = 64584000.

The previous prime is 156354131. The next prime is 156354157. The reversal of 156354142 is 241453651.

It is a happy number.

156354142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135267 + ... + 136417.

It is an arithmetic number, because the mean of its divisors is an integer number (8681472).

Almost surely, 2156354142 is an apocalyptic number.

156354142 is a deficient number, since it is larger than the sum of its proper divisors (121452962).

156354142 is a wasteful number, since it uses less digits than its factorization.

156354142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504.

The product of its digits is 14400, while the sum is 31.

The square root of 156354142 is about 12504.1649861156. The cubic root of 156354142 is about 538.7283084058.

The spelling of 156354142 in words is "one hundred fifty-six million, three hundred fifty-four thousand, one hundred forty-two".

Divisors: 1 2 7 14 31 62 217 313 434 626 1151 2191 2302 4382 8057 9703 16114 19406 35681 67921 71362 135842 249767 360263 499534 720526 2521841 5043682 11168153 22336306 78177071 156354142