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42013012516501 = 1319798872427371
BaseRepresentation
bin10011000110101111010101…
…01011111101111010010101
312111202101221002010012011011
421203113222223331322111
521001320122201012001
6225204302252412221
711564224421106505
oct1143275253757225
9174671832105134
1042013012516501
111242868931a124
1248664a0a77071
131a59a6b993930
14a53625231a05
154cccc52bed51
hex2635eaafde95

42013012516501 has 32 divisors (see below), whose sum is σ = 48283341926400. Its totient is φ = 36234148167360.

The previous prime is 42013012516499. The next prime is 42013012516537. The reversal of 42013012516501 is 10561521031024.

It is not a de Polignac number, because 42013012516501 - 21 = 42013012516499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42013012516561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16094346 + ... + 18521716.

It is an arithmetic number, because the mean of its divisors is an integer number (1508854435200).

Almost surely, 242013012516501 is an apocalyptic number.

It is an amenable number.

42013012516501 is a deficient number, since it is larger than the sum of its proper divisors (6270329409899).

42013012516501 is a wasteful number, since it uses less digits than its factorization.

42013012516501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428369.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 42013012516501 its reverse (10561521031024), we get a palindrome (52574533547525).

The spelling of 42013012516501 in words is "forty-two trillion, thirteen billion, twelve million, five hundred sixteen thousand, five hundred one".

Divisors: 1 13 19 79 247 887 1027 1501 11531 16853 19513 70073 219089 910949 1331387 2427371 17308031 31555823 46120049 191762309 599560637 2153078077 2492910017 3643483871 27990015001 40908483463 47365290323 170093168083 531810285019 2211211185079 3231770193577 42013012516501