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30284762868 = 22331486918859
BaseRepresentation
bin11100001101000111…
…001100111011110100
32220011121010100121000
4130031013030323310
5444010344402433
621525043323300
72121325144203
oct341507147364
986147110530
1030284762868
1111930a60648
125a52380530
132b18389639
1416741b323a
15bc3b28113
hex70d1ccef4

30284762868 has 48 divisors (see below), whose sum is σ = 78525496000. Its totient is φ = 10093706784.

The previous prime is 30284762861. The next prime is 30284762923. The reversal of 30284762868 is 86826748203.

30284762868 is a `hidden beast` number, since 3 + 0 + 2 + 8 + 4 + 7 + 628 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30284762861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596423 + ... + 1615281.

Almost surely, 230284762868 is an apocalyptic number.

It is an amenable number.

30284762868 is an abundant number, since it is smaller than the sum of its proper divisors (48240733132).

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

30284762868 is a wasteful number, since it uses less digits than its factorization.

30284762868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33741 (or 33733 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 30284762868 in words is "thirty billion, two hundred eighty-four million, seven hundred sixty-two thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 14869 18859 29738 37718 44607 56577 59476 75436 89214 113154 133821 169731 178428 226308 267642 339462 401463 509193 535284 678924 802926 1018386 1605852 2036772 280414471 560828942 841243413 1121657884 1682486826 2523730239 3364973652 5047460478 7571190717 10094920956 15142381434 30284762868