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30747796 = 2213158679
BaseRepresentation
bin111010101001…
…0110010010100
32010212011001021
41311102302110
530332412141
63015010524
7522231502
oct165226224
963764037
1030747796
11163a1302
12a369a44
1364a7481
144125672
152a756d1
hex1d52c94

30747796 has 12 divisors (see below), whose sum is σ = 54220320. Its totient is φ = 15256280.

The previous prime is 30747767. The next prime is 30747797. The reversal of 30747796 is 69774703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30747797) 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, 28816 + ... + 29863.

It is an arithmetic number, because the mean of its divisors is an integer number (4518360).

Almost surely, 230747796 is an apocalyptic number.

It is an amenable number.

30747796 is a deficient number, since it is larger than the sum of its proper divisors (23472524).

30747796 is a wasteful number, since it uses less digits than its factorization.

30747796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58814 (or 58812 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 30747796 is about 5545.0695216562. The cubic root of 30747796 is about 313.2838425933.

The spelling of 30747796 in words is "thirty million, seven hundred forty-seven thousand, seven hundred ninety-six".

Divisors: 1 2 4 131 262 524 58679 117358 234716 7686949 15373898 30747796