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139214502 = 23271104877
BaseRepresentation
bin10000100110000…
…11111010100110
3100200221211101200
420103003322212
5241114331002
621451503330
73310206120
oct1023037246
9320854350
10139214502
1171645a09
123a757b46
1322ac395b
14146bc210
15c34db1c
hex84c3ea6

139214502 has 24 divisors (see below), whose sum is σ = 344721936. Its totient is φ = 39775536.

The previous prime is 139214483. The next prime is 139214503. The reversal of 139214502 is 205412931.

139214502 is a `hidden beast` number, since 139 + 21 + 4 + 502 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139214503) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 552313 + ... + 552564.

It is an arithmetic number, because the mean of its divisors is an integer number (14363414).

Almost surely, 2139214502 is an apocalyptic number.

139214502 is an abundant number, since it is smaller than the sum of its proper divisors (205507434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139214502 is a wasteful number, since it uses less digits than its factorization.

139214502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104892 (or 1104889 counting only the distinct ones).

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

The square root of 139214502 is about 11798.9195268041. The cubic root of 139214502 is about 518.2764707309.

The spelling of 139214502 in words is "one hundred thirty-nine million, two hundred fourteen thousand, five hundred two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 1104877 2209754 3314631 6629262 7734139 9943893 15468278 19887786 23202417 46404834 69607251 139214502