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759357130921 = 631213812
BaseRepresentation
bin10110000110011010011…
…01100100100010101001
32200121000220102001220021
423003031031210202221
544420130411142141
61340502134400441
7105601402054234
oct13031515444251
92617026361807
10759357130921
112730503386a4
12103203200121
13567b796bb0c
1428a7865241b
1514b451706d1
hexb0cd3648a9

759357130921 has 9 divisors (see below), whose sum is σ = 761113588599. Its totient is φ = 757604723400.

The previous prime is 759357130919. The next prime is 759357130927. The reversal of 759357130921 is 129031753957.

The square root of 759357130921 is 871411.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 345110426521 + 414246704400 = 587461^2 + 643620^2 .

It is not a de Polignac number, because 759357130921 - 21 = 759357130919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (759357130927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 549859651 + ... + 549861031.

It is an arithmetic number, because the mean of its divisors is an integer number (84568176511).

Almost surely, 2759357130921 is an apocalyptic number.

759357130921 is the 871411-st square number.

759357130921 is the 435706-th centered octagonal number.

It is an amenable number.

759357130921 is a deficient number, since it is larger than the sum of its proper divisors (1756457678).

759357130921 is an frugal number, since it uses more digits than its factorization.

759357130921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 1786050, while the sum is 52.

The spelling of 759357130921 in words is "seven hundred fifty-nine billion, three hundred fifty-seven million, one hundred thirty thousand, nine hundred twenty-one".

Divisors: 1 631 1381 398161 871411 1907161 549860341 1203418591 759357130921