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25940702112 = 2531320785819
BaseRepresentation
bin11000001010001011…
…111011001110100000
32110221212000012111220
4120022023323032200
5411111304431422
615530023135040
71605556221063
oct301213731640
973855005456
1025940702112
1110001939496
12503b5a4480
1325a53b11a0
14138129a8da
15a1c58de5c
hex60a2fb3a0

25940702112 has 48 divisors (see below), whose sum is σ = 73332372960. Its totient is φ = 7981754112.

The previous prime is 25940702111. The next prime is 25940702129. The reversal of 25940702112 is 21120704952.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (25940702111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10391662 + ... + 10394157.

It is an arithmetic number, because the mean of its divisors is an integer number (1527757770).

Almost surely, 225940702112 is an apocalyptic number.

It is an amenable number.

25940702112 is an abundant number, since it is smaller than the sum of its proper divisors (47391670848).

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

25940702112 is a wasteful number, since it uses less digits than its factorization.

25940702112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20785845 (or 20785837 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 25940702112 in words is "twenty-five billion, nine hundred forty million, seven hundred two thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 20785819 41571638 62357457 83143276 124714914 166286552 249429828 270215647 332573104 498859656 540431294 665146208 810646941 997719312 1080862588 1621293882 1995438624 2161725176 3242587764 4323450352 6485175528 8646900704 12970351056 25940702112