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157191264552 = 23371516196439
BaseRepresentation
bin1001001001100101010…
…1000101100100101000
3120000201221002121022010
42102121111011210220
510033411430431202
6200113534155520
714233226463060
oct2223125054450
9500657077263
10157191264552
11607344096a3
122656b052ba0
1311a913a159a
1478728983a0
1541500c976c
hex2499545928

157191264552 has 64 divisors (see below), whose sum is σ = 452092262400. Its totient is φ = 44614353600.

The previous prime is 157191264523. The next prime is 157191264553. The reversal of 157191264552 is 255462191751.

It is not an unprimeable number, because it can be changed into a prime (157191264553) 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, 3072852 + ... + 3123587.

It is an arithmetic number, because the mean of its divisors is an integer number (7063941600).

Almost surely, 2157191264552 is an apocalyptic number.

157191264552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157191264552 is an abundant number, since it is smaller than the sum of its proper divisors (294900997848).

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

157191264552 is a wasteful number, since it uses less digits than its factorization.

157191264552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196606 (or 6196602 counting only the distinct ones).

The product of its digits is 756000, while the sum is 48.

The spelling of 157191264552 in words is "one hundred fifty-seven billion, one hundred ninety-one million, two hundred sixty-four thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 151 168 302 453 604 906 1057 1208 1812 2114 3171 3624 4228 6342 8456 12684 25368 6196439 12392878 18589317 24785756 37178634 43375073 49571512 74357268 86750146 130125219 148714536 173500292 260250438 347000584 520500876 935662289 1041001752 1871324578 2806986867 3742649156 5613973734 6549636023 7485298312 11227947468 13099272046 19648908069 22455894936 26198544092 39297816138 52397088184 78595632276 157191264552