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152120493 = 3272414611
BaseRepresentation
bin10010001000100…
…10110010101101
3101121020112002100
421010102302231
5302420323433
623032245313
73525000660
oct1104226255
9347215070
10152120493
1178960418
1242b40839
1325692135
14162bb6d7
15d54cb13
hex9112cad

152120493 has 12 divisors (see below), whose sum is σ = 251119648. Its totient is φ = 86925960.

The previous prime is 152120489. The next prime is 152120497. The reversal of 152120493 is 394021251.

152120493 is a `hidden beast` number, since 1 + 52 + 120 + 493 = 666.

It is an interprime number because it is at equal distance from previous prime (152120489) and next prime (152120497).

It is not a de Polignac number, because 152120493 - 22 = 152120489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152120497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1207243 + ... + 1207368.

Almost surely, 2152120493 is an apocalyptic number.

It is an amenable number.

152120493 is a deficient number, since it is larger than the sum of its proper divisors (98999155).

152120493 is a wasteful number, since it uses less digits than its factorization.

152120493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414624 (or 2414621 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 152120493 is about 12333.7136743156. The cubic root of 152120493 is about 533.8213116734.

The spelling of 152120493 in words is "one hundred fifty-two million, one hundred twenty thousand, four hundred ninety-three".

Divisors: 1 3 7 9 21 63 2414611 7243833 16902277 21731499 50706831 152120493