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87940902244608 = 2835723139181349
BaseRepresentation
bin10011111111101101010110…
…001111010101000100000000
3102112101001211200101101200000
4103333231112033111010000
543011310431433311413
6511011254234400000
724344343352366620
oct2377552617250400
9375331750341600
1087940902244608
1126025588780016
129a43652290000
133a0ba39bca43a
1417a0510522880
15a2782846d073
hex4ffb563d5100

87940902244608 has 1728 divisors, whose sum is σ = 318486465024000. Its totient is φ = 23660817776640.

The previous prime is 87940902244571. The next prime is 87940902244651. The reversal of 87940902244608 is 80644220904978.

87940902244608 is a `hidden beast` number, since 87 + 9 + 4 + 0 + 90 + 2 + 2 + 4 + 460 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 251979662418 + ... + 251979662766.

Almost surely, 287940902244608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87940902244608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159243232512000).

87940902244608 is an abundant number, since it is smaller than the sum of its proper divisors (230545562779392).

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

87940902244608 is a wasteful number, since it uses less digits than its factorization.

87940902244608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 87940902244608 in words is "eighty-seven trillion, nine hundred forty billion, nine hundred two million, two hundred forty-four thousand, six hundred eight".