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161031624625010 = 25411839432135227
BaseRepresentation
bin100100100111010100011000…
…110010001000101101110010
3210010011110202210102212122202
4210213110120302020231302
5132101320231401000020
61330252523533103202
745630102526666646
oct4447243062105562
9703143683385582
10161031624625010
1147345146018aa7
1216089011327b02
136bb12a8b00419
142ba9d87aa0c26
151393c07177e75
hex927518c88b72

161031624625010 has 32 divisors (see below), whose sum is σ = 296928358699392. Its totient is φ = 62841238542720.

The previous prime is 161031624624979. The next prime is 161031624625013. The reversal of 161031624625010 is 10526426130161.

It is not an unprimeable number, because it can be changed into a prime (161031624625013) 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, 74349017 + ... + 76484243.

It is an arithmetic number, because the mean of its divisors is an integer number (9279011209356).

Almost surely, 2161031624625010 is an apocalyptic number.

161031624625010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161031624625010 is a deficient number, since it is larger than the sum of its proper divisors (135896734074382).

161031624625010 is a wasteful number, since it uses less digits than its factorization.

161031624625010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319218.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 161031624625010 in words is "one hundred sixty-one trillion, thirty-one billion, six hundred twenty-four million, six hundred twenty-five thousand, ten".

Divisors: 1 2 5 10 41 82 205 410 183943 367886 919715 1839430 2135227 4270454 7541663 10676135 15083326 21352270 37708315 75416630 87544307 175088614 437721535 875443070 392760060061 785520120122 1963800300305 3927600600610 16103162462501 32206324925002 80515812312505 161031624625010