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1025742372 = 22385478531
BaseRepresentation
bin111101001000111…
…001011000100100
32122111010010000020
4331020321120210
54100042223442
6245441115140
734263444354
oct7510713044
92574103006
101025742372
11487006476
12247628ab0
13134681265
149a32cb64
15600b89ec
hex3d239624

1025742372 has 12 divisors (see below), whose sum is σ = 2393398896. Its totient is φ = 341914120.

The previous prime is 1025742359. The next prime is 1025742397. The reversal of 1025742372 is 2732475201.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42739254 + ... + 42739277.

It is an arithmetic number, because the mean of its divisors is an integer number (199449908).

Almost surely, 21025742372 is an apocalyptic number.

1025742372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1025742372 is an abundant number, since it is smaller than the sum of its proper divisors (1367656524).

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

1025742372 is a wasteful number, since it uses less digits than its factorization.

1025742372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85478538 (or 85478536 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 1025742372 is about 32027.2129914546. The cubic root of 1025742372 is about 1008.5081959670.

The spelling of 1025742372 in words is "one billion, twenty-five million, seven hundred forty-two thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 85478531 170957062 256435593 341914124 512871186 1025742372