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152211285 = 33517292287
BaseRepresentation
bin10010001001010…
…00111101010101
3101121102010122000
421010220331111
5302431230120
623034225513
73525526452
oct1104507525
9347363560
10152211285
1178a12656
1242b85299
13256c4565
1416302829
15d569990
hex9128f55

152211285 has 64 divisors (see below), whose sum is σ = 296524800. Its totient is φ = 73737216.

The previous prime is 152211253. The next prime is 152211313. The reversal of 152211285 is 582112251.

It is a happy number.

It is not a de Polignac number, because 152211285 - 25 = 152211253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 63 ways as a sum of consecutive naturals, for example, 65412 + ... + 67698.

It is an arithmetic number, because the mean of its divisors is an integer number (4633200).

Almost surely, 2152211285 is an apocalyptic number.

152211285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152211285 is a deficient number, since it is larger than the sum of its proper divisors (144313515).

152211285 is a wasteful number, since it uses less digits than its factorization.

152211285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347 (or 2341 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 152211285 is about 12337.3937685396. The cubic root of 152211285 is about 533.9274929959.

The spelling of 152211285 in words is "one hundred fifty-two million, two hundred eleven thousand, two hundred eighty-five".

Divisors: 1 3 5 9 15 17 27 29 45 51 85 87 135 145 153 255 261 435 459 493 765 783 1305 1479 2287 2295 2465 3915 4437 6861 7395 11435 13311 20583 22185 34305 38879 61749 66323 66555 102915 116637 194395 198969 308745 331615 349911 583185 596907 994845 1049733 1127491 1749555 1790721 2984535 3382473 5248665 5637455 8953605 10147419 16912365 30442257 50737095 152211285