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30679475 = 5217371951
BaseRepresentation
bin111010100001…
…0000110110011
32010201200022212
41311002012303
530323220400
63013322335
7521525351
oct165020663
963650285
1030679475
1116354a42
12a3363ab
136482348
1441087d1
152a60335
hex1d421b3

30679475 has 24 divisors (see below), whose sum is σ = 41390208. Its totient is φ = 22464000.

The previous prime is 30679463. The next prime is 30679487. The reversal of 30679475 is 57497603.

It is an interprime number because it is at equal distance from previous prime (30679463) and next prime (30679487).

It is not a de Polignac number, because 30679475 - 214 = 30663091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14750 + ... + 16700.

It is an arithmetic number, because the mean of its divisors is an integer number (1724592).

Almost surely, 230679475 is an apocalyptic number.

30679475 is a deficient number, since it is larger than the sum of its proper divisors (10710733).

30679475 is a wasteful number, since it uses less digits than its factorization.

30679475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 30679475 is about 5538.9055778195. The cubic root of 30679475 is about 313.0516336680.

The spelling of 30679475 in words is "thirty million, six hundred seventy-nine thousand, four hundred seventy-five".

Divisors: 1 5 17 25 37 85 185 425 629 925 1951 3145 9755 15725 33167 48775 72187 165835 360935 829175 1227179 1804675 6135895 30679475