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40250655630 = 232579109167311
BaseRepresentation
bin100101011111001000…
…000100001110001110
310211220010201011101100
4211133020010032032
51124413131440010
630254011123530
72623306633143
oct453710041616
9124803634340
1040250655630
111608549a359
127973a435a6
133a45c944c3
141d3b9b83ca
1510a89ea2c0
hex95f20438e

40250655630 has 192 divisors, whose sum is σ = 107935027200. Its totient is φ = 10403976960.

The previous prime is 40250655617. The next prime is 40250655631. The reversal of 40250655630 is 3655605204.

It is a happy number.

40250655630 is a `hidden beast` number, since 40 + 2 + 50 + 6 + 5 + 563 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40250655631) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 129423175 + ... + 129423485.

It is an arithmetic number, because the mean of its divisors is an integer number (562161600).

Almost surely, 240250655630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40250655630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53967513600).

40250655630 is an abundant number, since it is smaller than the sum of its proper divisors (67684371570).

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

40250655630 is a wasteful number, since it uses less digits than its factorization.

40250655630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 40250655630 in words is "forty billion, two hundred fifty million, six hundred fifty-five thousand, six hundred thirty".