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30157428860 = 22513293999659
BaseRepresentation
bin11100000101100001…
…011101100001111100
32212211201112010011122
4130011201131201330
5443230300210420
621504254210112
72115220626056
oct340541354174
985751463148
1030157428860
111187609a729
125a177b3938
132ac7b95480
1416613088d6
15bb7874725
hex70585d87c

30157428860 has 48 divisors (see below), whose sum is σ = 70554002400. Its totient is φ = 10751080704.

The previous prime is 30157428839. The next prime is 30157428871. The reversal of 30157428860 is 6882475103.

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 15 ways as a sum of consecutive naturals, for example, 1992290 + ... + 2007369.

It is an arithmetic number, because the mean of its divisors is an integer number (1469875050).

Almost surely, 230157428860 is an apocalyptic number.

It is an amenable number.

30157428860 is an abundant number, since it is smaller than the sum of its proper divisors (40396573540).

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

30157428860 is a wasteful number, since it uses less digits than its factorization.

30157428860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999710 (or 3999708 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 30157428860 in words is "thirty billion, one hundred fifty-seven million, four hundred twenty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 29 52 58 65 116 130 145 260 290 377 580 754 1508 1885 3770 7540 3999659 7999318 15998636 19998295 39996590 51995567 79993180 103991134 115990111 207982268 231980222 259977835 463960444 519955670 579950555 1039911340 1159901110 1507871443 2319802220 3015742886 6031485772 7539357215 15078714430 30157428860