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13421057910 = 2351334412969
BaseRepresentation
bin11000111111111010…
…10001011101110110
31021122100002101022220
430133331101131312
5204441242323120
610055431503210
7653405052501
oct143775213566
937570071286
1013421057910
1157679234a7
122726827b06
13135b6a70b0
14914652138
155383c4b40
hex31ff51776

13421057910 has 32 divisors (see below), whose sum is σ = 34688273760. Its totient is φ = 3303644928.

The previous prime is 13421057891. The next prime is 13421057921. The reversal of 13421057910 is 1975012431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17206095 + ... + 17206874.

It is an arithmetic number, because the mean of its divisors is an integer number (1084008555).

Almost surely, 213421057910 is an apocalyptic number.

13421057910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13421057910 is an abundant number, since it is smaller than the sum of its proper divisors (21267215850).

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

13421057910 is a wasteful number, since it uses less digits than its factorization.

13421057910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34412992.

The product of its (nonzero) digits is 7560, while the sum is 33.

The spelling of 13421057910 in words is "thirteen billion, four hundred twenty-one million, fifty-seven thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 34412969 68825938 103238907 172064845 206477814 344129690 447368597 516194535 894737194 1032389070 1342105791 2236842985 2684211582 4473685970 6710528955 13421057910