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25480967948 = 22312835871237
BaseRepresentation
bin10111101110110010…
…001011011100001100
32102202210221021210122
4113232302023130030
5404141111433243
615412241324112
71561304440202
oct275662133414
972683837718
1025480967948
11a8963843a7
124b31636638
132531086937
14133a1c7072
159e202b668
hex5eec8b70c

25480967948 has 48 divisors (see below), whose sum is σ = 46308885504. Its totient is φ = 12255088320.

The previous prime is 25480967947. The next prime is 25480967957. The reversal of 25480967948 is 84976908452.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is not an unprimeable number, because it can be changed into a prime (25480967947) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20598386 + ... + 20599622.

It is an arithmetic number, because the mean of its divisors is an integer number (964768448).

Almost surely, 225480967948 is an apocalyptic number.

It is an amenable number.

25480967948 is a deficient number, since it is larger than the sum of its proper divisors (20827917556).

25480967948 is a wasteful number, since it uses less digits than its factorization.

25480967948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 25480967948 in words is "twenty-five billion, four hundred eighty million, nine hundred sixty-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 31 62 124 283 566 587 1132 1174 1237 2348 2474 4948 8773 17546 18197 35092 36394 38347 72788 76694 153388 166121 332242 350071 664484 700142 726119 1400284 1452238 2904476 5149751 10299502 10852201 20599004 21704402 22509689 43408804 45019378 90038756 205491677 410983354 821966708 6370241987 12740483974 25480967948