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157123349862 = 23231573972341
BaseRepresentation
bin1001001001010101001…
…0000000110101100110
3120000120012022011212020
42102111102000311212
510033242034143422
6200103110404010
714231443303053
oct2222522006546
9500505264766
10157123349862
11606aa042356
1226550360606
1311a802b2c8b
14786785a02a
15414916195c
hex2495480d66

157123349862 has 32 divisors (see below), whose sum is σ = 327934967040. Its totient is φ = 50093424480.

The previous prime is 157123349861. The next prime is 157123349897. The reversal of 157123349862 is 268943321751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157123349861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2135812 + ... + 2208152.

It is an arithmetic number, because the mean of its divisors is an integer number (10247967720).

Almost surely, 2157123349862 is an apocalyptic number.

157123349862 is an abundant number, since it is smaller than the sum of its proper divisors (170811617178).

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

157123349862 is a wasteful number, since it uses less digits than its factorization.

157123349862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88108.

The product of its digits is 2177280, while the sum is 51.

The spelling of 157123349862 in words is "one hundred fifty-seven billion, one hundred twenty-three million, three hundred forty-nine thousand, eight hundred sixty-two".

Divisors: 1 2 3 6 23 46 69 138 15739 31478 47217 72341 94434 144682 217023 361997 434046 723994 1085991 1663843 2171982 3327686 4991529 9983058 1138574999 2277149998 3415724997 6831449994 26187224977 52374449954 78561674931 157123349862