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2159007948 = 223259972443
BaseRepresentation
bin1000000010101111…
…1101100011001100
312120110112222010100
42000223331203030
513410201223243
6554123011100
7104334156546
oct20053754314
95513488110
102159007948
11a08781699
12503069a90
132853ab3c6
14166a4a696
15c98210d3
hex80afd8cc

2159007948 has 18 divisors (see below), whose sum is σ = 5457492404. Its totient is φ = 719669304.

The previous prime is 2159007937. The next prime is 2159008003. The reversal of 2159007948 is 8497009512.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×21590079482 = 9322630639054341408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29986186 + ... + 29986257.

Almost surely, 22159007948 is an apocalyptic number.

It is an amenable number.

2159007948 is an abundant number, since it is smaller than the sum of its proper divisors (3298484456).

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

2159007948 is a wasteful number, since it uses less digits than its factorization.

2159007948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59972453 (or 59972448 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 2159007948 is about 46465.1261485428. The cubic root of 2159007948 is about 1292.4628845250.

The spelling of 2159007948 in words is "two billion, one hundred fifty-nine million, seven thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 59972443 119944886 179917329 239889772 359834658 539751987 719669316 1079503974 2159007948