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21013141302 = 2323257358427
BaseRepresentation
bin10011100100011110…
…110001011100110110
32000020102221011211200
4103210132301130312
5321013331010202
613353040313330
71342503516426
oct234436613466
960212834750
1021013141302
118a0340908a
1240a5312846
131c9b56642a
141034a94486
1582eb95e1c
hex4e47b1736

21013141302 has 24 divisors (see below), whose sum is σ = 45542578536. Its totient is φ = 7002210336.

The previous prime is 21013141301. The next prime is 21013141307. The reversal of 21013141302 is 20314131012.

21013141302 is a `hidden beast` number, since 210 + 13 + 141 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21013141301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120588 + ... + 237839.

It is an arithmetic number, because the mean of its divisors is an integer number (1897607439).

Almost surely, 221013141302 is an apocalyptic number.

21013141302 is an abundant number, since it is smaller than the sum of its proper divisors (24529437234).

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

21013141302 is a wasteful number, since it uses less digits than its factorization.

21013141302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361692 (or 361689 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21013141302 its reverse (20314131012), we get a palindrome (41327272314).

The spelling of 21013141302 in words is "twenty-one billion, thirteen million, one hundred forty-one thousand, three hundred two".

Divisors: 1 2 3 6 9 18 3257 6514 9771 19542 29313 58626 358427 716854 1075281 2150562 3225843 6451686 1167396739 2334793478 3502190217 7004380434 10506570651 21013141302