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157127447980 = 225411091757971
BaseRepresentation
bin1001001001010110000…
…1101001010110101100
3120000120111000101102101
42102111201221112230
510033244111313410
6200103334304444
714231523161656
oct2222541512654
9500514011371
10157127447980
1160701391328
12265517b8124
1311a810b93b9
1478682056d6
1541496c0d3a
hex24958695ac

157127447980 has 48 divisors (see below), whose sum is σ = 341116886880. Its totient is φ = 60755443200.

The previous prime is 157127447963. The next prime is 157127447999. The reversal of 157127447980 is 89744721751.

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 15 ways as a sum of consecutive naturals, for example, 789606 + ... + 968365.

It is an arithmetic number, because the mean of its divisors is an integer number (7106601810).

Almost surely, 2157127447980 is an apocalyptic number.

157127447980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157127447980 is an abundant number, since it is smaller than the sum of its proper divisors (183989438900).

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

157127447980 is a wasteful number, since it uses less digits than its factorization.

157127447980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758130 (or 1758128 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 55.

The spelling of 157127447980 in words is "one hundred fifty-seven billion, one hundred twenty-seven million, four hundred forty-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 109 164 205 218 410 436 545 820 1090 2180 4469 8938 17876 22345 44690 89380 1757971 3515942 7031884 8789855 17579710 35159420 72076811 144153622 191618839 288307244 360384055 383237678 720768110 766475356 958094195 1441536220 1916188390 3832376780 7856372399 15712744798 31425489596 39281861995 78563723990 157127447980