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42042013401 = 341219941893
BaseRepresentation
bin100111001001111001…
…100011011011011001
311000111222110120021110
4213021321203123121
51142100223412101
631151442130533
73015561134433
oct471171433331
9130458416243
1042042013401
1116914690a23
128193950a49
133c70149a0b
14206b881653
151160de7cd6
hex9c9e636d9

42042013401 has 24 divisors (see below), whose sum is σ = 57746689600. Its totient is φ = 27206340480.

The previous prime is 42042013399. The next prime is 42042013423. The reversal of 42042013401 is 10431024024.

It is not a de Polignac number, because 42042013401 - 21 = 42042013399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42042013471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 982611 + ... + 1024503.

Almost surely, 242042013401 is an apocalyptic number.

42042013401 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

42042013401 is a deficient number, since it is larger than the sum of its proper divisors (15704676199).

42042013401 is a wasteful number, since it uses less digits than its factorization.

42042013401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42177 (or 42136 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42042013401 its reverse (10431024024), we get a palindrome (52473037425).

The spelling of 42042013401 in words is "forty-two billion, forty-two million, thirteen thousand, four hundred one".

Divisors: 1 3 41 123 199 597 1681 5043 8159 24477 41893 125679 334519 1003557 1717613 5152839 8336707 25010121 70422133 211266399 341804987 1025414961 14014004467 42042013401