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61253831852 = 22136811119323
BaseRepresentation
bin111001000011000000…
…110100110010101100
312212002212220001200222
4321003000310302230
52000421440104402
644050054110512
74265632660103
oct710300646254
9185085801628
1061253831852
1123a83211534
12ba5594b438
135a1244bc25
142d711d703a
1518d78737a2
hexe43034cac

61253831852 has 12 divisors (see below), whose sum is σ = 107202136776. Its totient is φ = 30624649920.

The previous prime is 61253831827. The next prime is 61253831857. The reversal of 61253831852 is 25813835216.

It is not an unprimeable number, because it can be changed into a prime (61253831857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504938 + ... + 614385.

It is an arithmetic number, because the mean of its divisors is an integer number (8933511398).

Almost surely, 261253831852 is an apocalyptic number.

It is an amenable number.

61253831852 is a deficient number, since it is larger than the sum of its proper divisors (45948304924).

61253831852 is a wasteful number, since it uses less digits than its factorization.

61253831852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133008 (or 1133006 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The spelling of 61253831852 in words is "sixty-one billion, two hundred fifty-three million, eight hundred thirty-one thousand, eight hundred fifty-two".

Divisors: 1 2 4 13681 27362 54724 1119323 2238646 4477292 15313457963 30626915926 61253831852