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25280107390 = 2561293141443
BaseRepresentation
bin10111100010110011…
…111101001101111110
32102020210222111220201
4113202303331031332
5403233201414030
615340304234114
71553315236666
oct274263751576
972223874821
1025280107390
11a7a2a6393a
124a9630b93a
1324cb58aa35
14131b65d1a6
159ce5a22ca
hex5e2cfd37e

25280107390 has 32 divisors (see below), whose sum is σ = 46408342176. Its totient is φ = 9912255360.

The previous prime is 25280107387. The next prime is 25280107417. The reversal of 25280107390 is 9370108252.

It is a super-2 number, since 2×252801073902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108009 + ... + 249451.

It is an arithmetic number, because the mean of its divisors is an integer number (1450260693).

Almost surely, 225280107390 is an apocalyptic number.

25280107390 is a deficient number, since it is larger than the sum of its proper divisors (21128234786).

25280107390 is a wasteful number, since it uses less digits than its factorization.

25280107390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141804.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 25280107390 in words is "twenty-five billion, two hundred eighty million, one hundred seven thousand, three hundred ninety".

Divisors: 1 2 5 10 61 122 293 305 586 610 1465 2930 17873 35746 89365 141443 178730 282886 707215 1414430 8628023 17256046 41442799 43140115 82885598 86280230 207213995 414427990 2528010739 5056021478 12640053695 25280107390