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30267577988 = 2217736097417
BaseRepresentation
bin11100001100000101…
…101001011010000100
32220010101210021100222
4130030011221122010
5443441444443423
621523231123512
72121026111414
oct341405513204
986111707328
1030267577988
111192229336a
125a48673598
132b1495067b
141671bbc644
15bc23813c8
hex70c169684

30267577988 has 24 divisors (see below), whose sum is σ = 56852325432. Its totient is φ = 14048446464.

The previous prime is 30267577979. The next prime is 30267578053. The reversal of 30267577988 is 88977576203.

It can be written as a sum of positive squares in 4 ways, for example, as 9529273924 + 20738304064 = 97618^2 + 144008^2 .

It is a super-2 number, since 2×302675779882 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30267577988.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3043745 + ... + 3053672.

It is an arithmetic number, because the mean of its divisors is an integer number (2368846893).

Almost surely, 230267577988 is an apocalyptic number.

It is an amenable number.

30267577988 is a deficient number, since it is larger than the sum of its proper divisors (26584747444).

30267577988 is a wasteful number, since it uses less digits than its factorization.

30267577988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097511 (or 6097509 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 62.

The spelling of 30267577988 in words is "thirty billion, two hundred sixty-seven million, five hundred seventy-seven thousand, nine hundred eighty-eight".

Divisors: 1 2 4 17 34 68 73 146 292 1241 2482 4964 6097417 12194834 24389668 103656089 207312178 414624356 445111441 890222882 1780445764 7566894497 15133788994 30267577988