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30876072 = 2331286503
BaseRepresentation
bin111010111001…
…0000110101000
32011002200000020
41311302012220
530401013242
63021440440
7523304463
oct165620650
964080006
1030876072
1116479717
12a410120
136520986
14415a2da
152a9d6ec
hex1d721a8

30876072 has 16 divisors (see below), whose sum is σ = 77190240. Its totient is φ = 10292016.

The previous prime is 30876071. The next prime is 30876073. The reversal of 30876072 is 27067803.

It is an interprime number because it is at equal distance from previous prime (30876071) and next prime (30876073).

It is not an unprimeable number, because it can be changed into a prime (30876071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643228 + ... + 643275.

It is an arithmetic number, because the mean of its divisors is an integer number (4824390).

Almost surely, 230876072 is an apocalyptic number.

It is an amenable number.

30876072 is an abundant number, since it is smaller than the sum of its proper divisors (46314168).

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

30876072 is a wasteful number, since it uses less digits than its factorization.

30876072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286512 (or 1286508 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 30876072 is about 5556.6241550063. The cubic root of 30876072 is about 313.7188986276.

The spelling of 30876072 in words is "thirty million, eight hundred seventy-six thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 1286503 2573006 3859509 5146012 7719018 10292024 15438036 30876072