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153287139 = 38327417
BaseRepresentation
bin10010010001011…
…11100111100011
3101200102210102110
421020233213203
5303220142024
623113250403
73540630165
oct1110574743
9350383373
10153287139
1179587995
1243403a03
13259b0165
1416502935
15d6cd629
hex922f9e3

153287139 has 12 divisors (see below), whose sum is σ = 206902856. Its totient is φ = 100946592.

The previous prime is 153287137. The next prime is 153287143. The reversal of 153287139 is 931782351.

It is not a de Polignac number, because 153287139 - 21 = 153287137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153287097 and 153287106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153287137) 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, 16959 + ... + 24375.

Almost surely, 2153287139 is an apocalyptic number.

153287139 is a deficient number, since it is larger than the sum of its proper divisors (53615717).

153287139 is an frugal number, since it uses more digits than its factorization.

153287139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7586 (or 7503 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 153287139 is about 12380.9183423525. The cubic root of 153287139 is about 535.1825027348.

The spelling of 153287139 in words is "one hundred fifty-three million, two hundred eighty-seven thousand, one hundred thirty-nine".

Divisors: 1 3 83 249 6889 7417 20667 22251 615611 1846833 51095713 153287139