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30512629 = 77735639
BaseRepresentation
bin111010001100…
…1010111110101
32010102012110101
41310121113311
530302401004
63005554101
7520232050
oct164312765
963365411
1030512629
1116250654
12a275931
136424414
1440a3a97
152a2aba4
hex1d195f5

30512629 has 8 divisors (see below), whose sum is σ = 34922880. Its totient is φ = 26115216.

The previous prime is 30512623. The next prime is 30512633. The reversal of 30512629 is 92621503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30512629 - 23 = 30512621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30512597 and 30512606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30512621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2592 + ... + 8230.

It is an arithmetic number, because the mean of its divisors is an integer number (4365360).

Almost surely, 230512629 is an apocalyptic number.

It is an amenable number.

30512629 is a deficient number, since it is larger than the sum of its proper divisors (4410251).

30512629 is an equidigital number, since it uses as much as digits as its factorization.

30512629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 30512629 is about 5523.8237661967. The cubic root of 30512629 is about 312.4831060734.

The spelling of 30512629 in words is "thirty million, five hundred twelve thousand, six hundred twenty-nine".

Divisors: 1 7 773 5411 5639 39473 4358947 30512629