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30696620 = 2259715823
BaseRepresentation
bin111010100011…
…0010010101100
32010202112211212
41311012102230
530324242440
63013533552
7521626343
oct165062254
963675755
1030696620
1116366909
12a3442b8
13648a0a6
144110b5a
152a65465
hex1d464ac

30696620 has 24 divisors (see below), whose sum is σ = 65131584. Its totient is φ = 12151296.

The previous prime is 30696613. The next prime is 30696641. The reversal of 30696620 is 2669603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5972 + ... + 9851.

It is an arithmetic number, because the mean of its divisors is an integer number (2713816).

Almost surely, 230696620 is an apocalyptic number.

It is an amenable number.

30696620 is an abundant number, since it is smaller than the sum of its proper divisors (34434964).

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

30696620 is a wasteful number, since it uses less digits than its factorization.

30696620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15929 (or 15927 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 30696620 is about 5540.4530500673. The cubic root of 30696620 is about 313.1099383462.

The spelling of 30696620 in words is "thirty million, six hundred ninety-six thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 15823 31646 63292 79115 158230 316460 1534831 3069662 6139324 7674155 15348310 30696620