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20101542351 = 3111039586273
BaseRepresentation
bin10010101110001001…
…010011000111001111
31220212220121011011120
4102232021103013033
5312131443323401
613122353452023
71311064201512
oct225611230717
956786534146
1020101542351
118585884320
123a8bb71013
131b8473b477
14d89998d79
157c9b27836
hex4ae2531cf

20101542351 has 16 divisors (see below), whose sum is σ = 29266798080. Its totient is φ = 12171006720.

The previous prime is 20101542281. The next prime is 20101542359. The reversal of 20101542351 is 15324510102.

It is a happy number.

It is not a de Polignac number, because 20101542351 - 233 = 11511607759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101542359) 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, 258850 + ... + 327423.

It is an arithmetic number, because the mean of its divisors is an integer number (1829174880).

Almost surely, 220101542351 is an apocalyptic number.

20101542351 is a deficient number, since it is larger than the sum of its proper divisors (9165255729).

20101542351 is a wasteful number, since it uses less digits than its factorization.

20101542351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587326.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 20101542351 in words is "twenty billion, one hundred one million, five hundred forty-two thousand, three hundred fifty-one".

Divisors: 1 3 11 33 1039 3117 11429 34287 586273 1758819 6449003 19347009 609137647 1827412941 6700514117 20101542351