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157240584520 = 23531712836311
BaseRepresentation
bin1001001001110001000…
…1001110100101001000
3120000212100220022120121
42102130101032211020
510034012042201040
6200122455233024
714234365626055
oct2223421164510
9500770808517
10157240584520
116075a2354a8
1226583678774
1311a9b67c2b6
14787925602c
1541545bcc4a
hex249c44e948

157240584520 has 128 divisors (see below), whose sum is σ = 371715194880. Its totient is φ = 59788512000.

The previous prime is 157240584437. The next prime is 157240584539. The reversal of 157240584520 is 25485042751.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24912165 + ... + 24918475.

It is an arithmetic number, because the mean of its divisors is an integer number (2904024960).

Almost surely, 2157240584520 is an apocalyptic number.

157240584520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157240584520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185857597440).

157240584520 is an abundant number, since it is smaller than the sum of its proper divisors (214474610360).

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

157240584520 is a wasteful number, since it uses less digits than its factorization.

157240584520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707 (or 6703 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 43.

The spelling of 157240584520 in words is "one hundred fifty-seven billion, two hundred forty million, five hundred eighty-four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 62 71 124 142 155 248 283 284 310 355 566 568 620 710 1132 1240 1415 1420 2201 2264 2830 2840 4402 5660 6311 8773 8804 11005 11320 12622 17546 17608 20093 22010 25244 31555 35092 40186 43865 44020 50488 63110 70184 80372 87730 88040 100465 126220 160744 175460 195641 200930 252440 350920 391282 401860 448081 622883 782564 803720 896162 978205 1245766 1565128 1786013 1792324 1956410 2240405 2491532 3114415 3572026 3584648 3912820 4480810 4983064 6228830 7144052 7825640 8930065 8961620 12457660 13890511 14288104 17860130 17923240 24915320 27781022 35720260 55366403 55562044 69452555 71440520 110732806 111124088 126806923 138905110 221465612 253613846 276832015 277810220 442931224 507227692 553664030 555620440 634034615 1014455384 1107328060 1268069230 2214656120 2536138460 3931014613 5072276920 7862029226 15724058452 19655073065 31448116904 39310146130 78620292260 157240584520