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152046391 = 7296311187
BaseRepresentation
bin10010001000000…
…00101100110111
3101121002202102211
421010000230313
5302410441031
623030514251
73524241640
oct1104005467
9347082384
10152046391
117890a782
1242b05987
13256674a3
141629c6c7
15d535bb1
hex9100b37

152046391 has 16 divisors (see below), whose sum is σ = 180195840. Its totient is φ = 125526240.

The previous prime is 152046361. The next prime is 152046407. The reversal of 152046391 is 193640251.

It is not a de Polignac number, because 152046391 - 27 = 152046263 is a prime.

It is a super-2 number, since 2×1520463912 = 46236210032249762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152046311) 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, 127500 + ... + 128686.

It is an arithmetic number, because the mean of its divisors is an integer number (11262240).

Almost surely, 2152046391 is an apocalyptic number.

152046391 is a deficient number, since it is larger than the sum of its proper divisors (28149449).

152046391 is a wasteful number, since it uses less digits than its factorization.

152046391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 152046391 is about 12330.7092658938. The cubic root of 152046391 is about 533.7346180029.

The spelling of 152046391 in words is "one hundred fifty-two million, forty-six thousand, three hundred ninety-one".

Divisors: 1 7 29 203 631 1187 4417 8309 18299 34423 128093 240961 748997 5242979 21720913 152046391