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30064711568 = 2429411580357
BaseRepresentation
bin11011111111111111…
…110001011110010000
32212121021001120221212
4123333333301132100
5443033031232233
621451143035252
72113013555213
oct337777613620
985537046855
1030064711568
1111828822871
1259b073bb28
132ab1901778
141652c9177a
15bae65ca48
hex6ffff1790

30064711568 has 40 divisors (see below), whose sum is σ = 61728783480. Its totient is φ = 14159989760.

The previous prime is 30064711561. The next prime is 30064711627. The reversal of 30064711568 is 86511746003.

It can be written as a sum of positive squares in 4 ways, for example, as 90022144 + 29974689424 = 9488^2 + 173132^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (30064711561) 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, 771155 + ... + 809202.

It is an arithmetic number, because the mean of its divisors is an integer number (1543219587).

Almost surely, 230064711568 is an apocalyptic number.

It is an amenable number.

30064711568 is an abundant number, since it is smaller than the sum of its proper divisors (31664071912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30064711568 is a wasteful number, since it uses less digits than its factorization.

30064711568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580435 (or 1580429 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 30064711568 in words is "thirty billion, sixty-four million, seven hundred eleven thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 29 41 58 82 116 164 232 328 464 656 1189 2378 4756 9512 19024 1580357 3160714 6321428 12642856 25285712 45830353 64794637 91660706 129589274 183321412 259178548 366642824 518357096 733285648 1036714192 1879044473 3758088946 7516177892 15032355784 30064711568