Search a number
-
+
25254873380 = 22511157972701
BaseRepresentation
bin10111100001010011…
…101100100100100100
32102012001111111100202
4113201103230210210
5403210221422010
615334003330032
71552560611312
oct274123544444
972161444322
1025254873380
11a78a799190
124a89980918
1324c6294179
1413181710b2
159cc26a6a5
hex5e14ec924

25254873380 has 48 divisors (see below), whose sum is σ = 57894056640. Its totient is φ = 9177648000.

The previous prime is 25254873331. The next prime is 25254873401. The reversal of 25254873380 is 8337845252.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311030 + ... + 383730.

It is an arithmetic number, because the mean of its divisors is an integer number (1206126180).

Almost surely, 225254873380 is an apocalyptic number.

25254873380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25254873380 is an abundant number, since it is smaller than the sum of its proper divisors (32639183260).

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

25254873380 is a wasteful number, since it uses less digits than its factorization.

25254873380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74300 (or 74298 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 25254873380 in words is "twenty-five billion, two hundred fifty-four million, eight hundred seventy-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1579 3158 6316 7895 15790 17369 31580 34738 69476 72701 86845 145402 173690 290804 347380 363505 727010 799711 1454020 1599422 3198844 3998555 7997110 15994220 114794879 229589758 459179516 573974395 1147948790 1262743669 2295897580 2525487338 5050974676 6313718345 12627436690 25254873380