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25427485930 = 25711269122761
BaseRepresentation
bin10111101011100110…
…001010010011101010
32102122002022010021011
4113223212022103222
5404033414022210
615403051134134
71560055031020
oct275346122352
972562263234
1025427485930
11a869175590
124b1774434a
132522c7c682
141333064710
159dc4b4d8a
hex5eb98a4ea

25427485930 has 64 divisors (see below), whose sum is σ = 57275838720. Its totient is φ = 7895923200.

The previous prime is 25427485901. The next prime is 25427485943. The reversal of 25427485930 is 3958472452.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 145750 + ... + 268510.

It is an arithmetic number, because the mean of its divisors is an integer number (894934980).

Almost surely, 225427485930 is an apocalyptic number.

25427485930 is an abundant number, since it is smaller than the sum of its proper divisors (31848352790).

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

25427485930 is a wasteful number, since it uses less digits than its factorization.

25427485930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123055.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 25427485930 in words is "twenty-five billion, four hundred twenty-seven million, four hundred eighty-five thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 269 385 538 770 1345 1883 2690 2959 3766 5918 9415 14795 18830 20713 29590 41426 103565 122761 207130 245522 613805 859327 1227610 1350371 1718654 2700742 4296635 6751855 8593270 9452597 13503710 18905194 33022709 47262985 66045418 94525970 165113545 231158963 330227090 363249799 462317926 726499598 1155794815 1816248995 2311589630 2542748593 3632497990 5085497186 12713742965 25427485930