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157678080 = 293572419
BaseRepresentation
bin10010110010111…
…11101000000000
3101222200212122220
421121133220000
5310331144310
623351331040
73623145600
oct1131375000
9358625586
10157678080
118100696a
1244980a80
1326889951
1416d26c00
15dc99670
hex965fa00

157678080 has 240 divisors, whose sum is σ = 587774880. Its totient is φ = 35954688.

The previous prime is 157678061. The next prime is 157678097. The reversal of 157678080 is 80876751.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376111 + ... + 376529.

It is an arithmetic number, because the mean of its divisors is an integer number (2449062).

Almost surely, 2157678080 is an apocalyptic number.

157678080 is a gapful number since it is divisible by the number (10) 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 157678080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293887440).

157678080 is an abundant number, since it is smaller than the sum of its proper divisors (430096800).

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

157678080 is an equidigital number, since it uses as much as digits as its factorization.

157678080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 157678080 is about 12556.9932706839. The cubic root of 157678080 is about 540.2446079742.

The spelling of 157678080 in words is "one hundred fifty-seven million, six hundred seventy-eight thousand, eighty".