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20878074000 = 243553717192
BaseRepresentation
bin10011011100011011…
…100010000010010000
31222220000210001100000
4103130123202002100
5320224241332000
613331413330000
71336243462260
oct233433420220
958800701300
1020878074000
118944146013
124068036900
131c79595354
141020b757a0
15822db6000
hex4dc6e2090

20878074000 has 1440 divisors, whose sum is σ = 96577318656. Its totient is φ = 4255027200.

The previous prime is 20878073977. The next prime is 20878074043. The reversal of 20878074000 is 47087802.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1098845991 + ... + 1098846009.

Almost surely, 220878074000 is an apocalyptic number.

20878074000 is a gapful number since it is divisible by the number (20) 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 20878074000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48288659328).

20878074000 is an abundant number, since it is smaller than the sum of its proper divisors (75699244656).

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

20878074000 is a wasteful number, since it uses less digits than its factorization.

20878074000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 20878074000 in words is "twenty billion, eight hundred seventy-eight million, seventy-four thousand".