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157006464 = 2732329613
BaseRepresentation
bin10010101101110…
…11101010000000
3101221102202101020
421112323222000
5310143201324
623325105440
73614350536
oct1126735200
9357382336
10157006464
118069830a
12446b8280
13266b3044
1416bd0156
15dbb5679
hex95bba80

157006464 has 128 divisors (see below), whose sum is σ = 450921600. Its totient is φ = 48254976.

The previous prime is 157006457. The next prime is 157006469. The reversal of 157006464 is 464600751.

157006464 = T387 + T388 + ... + T999.

157006464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (157006469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255822 + ... + 256434.

It is an arithmetic number, because the mean of its divisors is an integer number (3522825).

Almost surely, 2157006464 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 157006464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225460800).

157006464 is an abundant number, since it is smaller than the sum of its proper divisors (293915136).

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

157006464 is a wasteful number, since it uses less digits than its factorization.

157006464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 157006464 is about 12530.2220251678. Note that the first 3 decimals coincide. The cubic root of 157006464 is about 539.4764747783.

The spelling of 157006464 in words is "one hundred fifty-seven million, six thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 23 24 29 32 46 48 58 64 69 87 92 96 116 128 138 174 184 192 232 276 348 368 384 464 552 613 667 696 736 928 1104 1226 1334 1392 1472 1839 1856 2001 2208 2452 2668 2784 2944 3678 3712 4002 4416 4904 5336 5568 7356 8004 8832 9808 10672 11136 14099 14712 16008 17777 19616 21344 28198 29424 32016 35554 39232 42297 42688 53331 56396 58848 64032 71108 78464 84594 85376 106662 112792 117696 128064 142216 169188 213324 225584 235392 256128 284432 338376 408871 426648 451168 568864 676752 817742 853296 902336 1137728 1226613 1353504 1635484 1706592 1804672 2275456 2453226 2707008 3270968 3413184 4906452 5414016 6541936 6826368 9812904 13083872 19625808 26167744 39251616 52335488 78503232 157006464