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157018484 = 22727120693
BaseRepresentation
bin10010101101111…
…10100101110100
3101221110100212102
421112332211310
5310144042414
623325241232
73614430560
oct1126764564
9357410772
10157018484
11806a6347
1244703218
13266b865c
1416bd46a0
15dbb8ede
hex95be974

157018484 has 24 divisors (see below), whose sum is σ = 315211008. Its totient is φ = 67042080.

The previous prime is 157018483. The next prime is 157018501. The reversal of 157018484 is 484810751.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157018483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2759 + ... + 17934.

It is an arithmetic number, because the mean of its divisors is an integer number (13133792).

Almost surely, 2157018484 is an apocalyptic number.

157018484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

157018484 is an abundant number, since it is smaller than the sum of its proper divisors (158192524).

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

157018484 is a wasteful number, since it uses less digits than its factorization.

157018484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20975 (or 20973 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 157018484 is about 12530.7016563319. The cubic root of 157018484 is about 539.4902413915.

The spelling of 157018484 in words is "one hundred fifty-seven million, eighteen thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 28 271 542 1084 1897 3794 7588 20693 41386 82772 144851 289702 579404 5607803 11215606 22431212 39254621 78509242 157018484