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30477485 = 56095497
BaseRepresentation
bin111010001000…
…0110010101101
32010100102020202
41310100302231
530300234420
63005123245
7520024433
oct164206255
963312222
1030477485
1116227205
12a259525
13641141c
144094d53
152a20575
hex1d10cad

30477485 has 4 divisors (see below), whose sum is σ = 36572988. Its totient is φ = 24381984.

The previous prime is 30477467. The next prime is 30477511. The reversal of 30477485 is 58477403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58477403 = 402114543.

It can be written as a sum of positive squares in 2 ways, for example, as 18992164 + 11485321 = 4358^2 + 3389^2 .

It is a cyclic number.

It is not a de Polignac number, because 30477485 - 212 = 30473389 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 3 ways as a sum of consecutive naturals, for example, 3047744 + ... + 3047753.

It is an arithmetic number, because the mean of its divisors is an integer number (9143247).

Almost surely, 230477485 is an apocalyptic number.

It is an amenable number.

30477485 is a deficient number, since it is larger than the sum of its proper divisors (6095503).

30477485 is an equidigital number, since it uses as much as digits as its factorization.

30477485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095502.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 30477485 is about 5520.6417199452. The cubic root of 30477485 is about 312.3630888258.

The spelling of 30477485 in words is "thirty million, four hundred seventy-seven thousand, four hundred eighty-five".

Divisors: 1 5 6095497 30477485