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25230800454 = 2319234132
BaseRepresentation
bin10111011111110111…
…110111011001000110
32102010101012110111220
4113133313313121012
5403133041103304
615331343341210
71552146156666
oct273767673106
972111173456
1025230800454
11a778146902
124a818b1806
1324c12b5c32
141314ca61a6
159ca0b2ad9
hex5dfdf7646

25230800454 has 36 divisors (see below), whose sum is σ = 53272866276. Its totient is φ = 7965286704.

The previous prime is 25230800447. The next prime is 25230800489. The reversal of 25230800454 is 45400803252.

It is a super-2 number, since 2×252308004542 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7390852 + ... + 7394264.

It is an arithmetic number, because the mean of its divisors is an integer number (1479801841).

Almost surely, 225230800454 is an apocalyptic number.

25230800454 is an abundant number, since it is smaller than the sum of its proper divisors (28042065822).

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

25230800454 is an frugal number, since it uses more digits than its factorization.

25230800454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6869 (or 3437 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Multiplying 25230800454 by its product of nonzero digits (38400), we get a square (968862737433600 = 311265602).

The spelling of 25230800454 in words is "twenty-five billion, two hundred thirty million, eight hundred thousand, four hundred fifty-four".

Divisors: 1 2 3 6 19 38 57 114 361 722 1083 2166 3413 6826 10239 20478 64847 129694 194541 389082 1232093 2464186 3696279 7392558 11648569 23297138 34945707 69891414 221322811 442645622 663968433 1327936866 4205133409 8410266818 12615400227 25230800454