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157744468 = 22737433541
BaseRepresentation
bin10010110011011…
…11110101010100
3101222211020201201
421121233311110
5310340310333
623353002244
73623543260
oct1131576524
9358736651
10157744468
1181051832
12449b3384
13268b0c2b
1416d430a0
15dcae17d
hex966fd54

157744468 has 48 divisors (see below), whose sum is σ = 331644544. Its totient is φ = 64229760.

The previous prime is 157744451. The next prime is 157744469. The reversal of 157744468 is 864447751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157744469) 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, 42778 + ... + 46318.

Almost surely, 2157744468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157744468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165822272).

157744468 is an abundant number, since it is smaller than the sum of its proper divisors (173900076).

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

157744468 is a wasteful number, since it uses less digits than its factorization.

157744468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3630 counting only the distinct ones).

The product of its digits is 752640, while the sum is 46.

The square root of 157744468 is about 12559.6364597069. The cubic root of 157744468 is about 540.3204179761.

The spelling of 157744468 in words is "one hundred fifty-seven million, seven hundred forty-four thousand, four hundred sixty-eight".

Divisors: 1 2 4 7 14 28 37 43 74 86 148 172 259 301 518 602 1036 1204 1591 3182 3541 6364 7082 11137 14164 22274 24787 44548 49574 99148 131017 152263 262034 304526 524068 609052 917119 1065841 1834238 2131682 3668476 4263364 5633731 11267462 22534924 39436117 78872234 157744468