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157234044 = 223111971883
BaseRepresentation
bin10010101111100…
…11001101111100
3101221212022120010
421113303031330
5310222442134
623334023220
73616316202
oct1127631574
9357768503
10157234044
11808332a0
12447a7b10
13267627c6
1416c4d072
15dc0cce9
hex95f337c

157234044 has 96 divisors (see below), whose sum is σ = 427714560. Its totient is φ = 44452800.

The previous prime is 157234031. The next prime is 157234061. The reversal of 157234044 is 440432751.

157234044 = 14532 + 14542 + ... + 15232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177627 + ... + 178509.

It is an arithmetic number, because the mean of its divisors is an integer number (4455360).

Almost surely, 2157234044 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 157234044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213857280).

157234044 is an abundant number, since it is smaller than the sum of its proper divisors (270480516).

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

157234044 is a wasteful number, since it uses less digits than its factorization.

157234044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 157234044 is about 12539.2999804614. The cubic root of 157234044 is about 539.7370049939.

Adding to 157234044 its reverse (440432751), we get a palindrome (597666795).

The spelling of 157234044 in words is "one hundred fifty-seven million, two hundred thirty-four thousand, forty-four".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 71 76 114 132 142 209 213 228 284 418 426 627 781 836 852 883 1254 1349 1562 1766 2343 2508 2649 2698 3124 3532 4047 4686 5298 5396 8094 9372 9713 10596 14839 16188 16777 19426 29139 29678 33554 38852 44517 50331 58278 59356 62693 67108 89034 100662 116556 125386 178068 184547 188079 201324 250772 369094 376158 553641 689623 738188 752316 1107282 1191167 1379246 2068869 2214564 2382334 2758492 3573501 4137738 4764668 7147002 8275476 13102837 14294004 26205674 39308511 52411348 78617022 157234044