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40025159680 = 2115112912253
BaseRepresentation
bin100101010001101011…
…110111100000000000
310211022102101210002111
4211101223313200000
51123432420102210
630215354025104
72614601146432
oct452153674000
9124272353074
1040025159680
1115a7a182970
127910418194
133a0b35134c
141d19a7a652
151093d0688a
hex951af7800

40025159680 has 192 divisors, whose sum is σ = 108389080800. Its totient is φ = 14051573760.

The previous prime is 40025159641. The next prime is 40025159693. The reversal of 40025159680 is 8695152004.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3260434 + ... + 3272686.

Almost surely, 240025159680 is an apocalyptic number.

40025159680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40025159680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54194540400).

40025159680 is an abundant number, since it is smaller than the sum of its proper divisors (68363921120).

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

40025159680 is a wasteful number, since it uses less digits than its factorization.

40025159680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320 (or 12300 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 40025159680 in words is "forty billion, twenty-five million, one hundred fifty-nine thousand, six hundred eighty".