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157814380 = 22519597039
BaseRepresentation
bin10010110100000…
…00111001101100
3101222221210122001
421122000321230
5310400030010
623354302044
73624254143
oct1132007154
9358853561
10157814380
118109a309
1244a27924
13269069b9
1416d6075a
15dcc4c3a
hex9680e6c

157814380 has 48 divisors (see below), whose sum is σ = 354816000. Its totient is φ = 58781376.

The previous prime is 157814369. The next prime is 157814387. The reversal of 157814380 is 83418751.

It is not an unprimeable number, because it can be changed into a prime (157814387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18901 + ... + 25939.

It is an arithmetic number, because the mean of its divisors is an integer number (7392000).

Almost surely, 2157814380 is an apocalyptic number.

157814380 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 157814380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177408000).

157814380 is an abundant number, since it is smaller than the sum of its proper divisors (197001620).

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

157814380 is a wasteful number, since it uses less digits than its factorization.

157814380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7126 (or 7124 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 157814380 is about 12562.4193529750. The cubic root of 157814380 is about 540.4002291254.

The spelling of 157814380 in words is "one hundred fifty-seven million, eight hundred fourteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 59 76 95 118 190 236 295 380 590 1121 1180 2242 4484 5605 7039 11210 14078 22420 28156 35195 70390 133741 140780 267482 415301 534964 668705 830602 1337410 1661204 2076505 2674820 4153010 7890719 8306020 15781438 31562876 39453595 78907190 157814380