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30070272 = 29319577
BaseRepresentation
bin111001010110…
…1011000000000
32002120201122210
41302231120000
530144222042
62552302120
7513410301
oct162553000
962521583
1030070272
1115a79271
12a0a1940
1362cac7b
143dca7a8
15298ea9c
hex1cad600

30070272 has 40 divisors (see below), whose sum is σ = 80113176. Its totient is φ = 10022912.

The previous prime is 30070259. The next prime is 30070283. The reversal of 30070272 is 27207003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8253 + ... + 11324.

Almost surely, 230070272 is an apocalyptic number.

30070272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30070272 is an abundant number, since it is smaller than the sum of its proper divisors (50042904).

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

30070272 is an equidigital number, since it uses as much as digits as its factorization.

30070272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19598 (or 19582 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 30070272 is about 5483.6367494574. The cubic root of 30070272 is about 310.9656741236.

Adding to 30070272 its reverse (27207003), we get a palindrome (57277275).

The spelling of 30070272 in words is "thirty million, seventy thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1536 19577 39154 58731 78308 117462 156616 234924 313232 469848 626464 939696 1252928 1879392 2505856 3758784 5011712 7517568 10023424 15035136 30070272