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30469763894 = 215234881947
BaseRepresentation
bin11100011000001000…
…111011001100110110
32220122111020101021212
4130120020323030312
5444400224421034
621555252441422
72126032501613
oct343010731466
986574211255
1030469763894
1111a16429659
125aa4319272
132b477c18bb
1416909ad50a
15bd4ebd2ce
hex71823b336

30469763894 has 4 divisors (see below), whose sum is σ = 45704645844. Its totient is φ = 15234881946.

The previous prime is 30469763881. The next prime is 30469763911. The reversal of 30469763894 is 49836796403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×304697638942 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7617440972 + ... + 7617440975.

It is an arithmetic number, because the mean of its divisors is an integer number (11426161461).

Almost surely, 230469763894 is an apocalyptic number.

30469763894 is a deficient number, since it is larger than the sum of its proper divisors (15234881950).

30469763894 is a wasteful number, since it uses less digits than its factorization.

30469763894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15234881949.

The product of its (nonzero) digits is 23514624, while the sum is 59.

The spelling of 30469763894 in words is "thirty billion, four hundred sixty-nine million, seven hundred sixty-three thousand, eight hundred ninety-four".

Divisors: 1 2 15234881947 30469763894