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30477690000 = 243254397853
BaseRepresentation
bin11100011000100111…
…001010010010010000
32220200001011001212100
4130120213022102100
5444404242040000
622000134400400
72126160043032
oct343047122220
986601131770
1030477690000
1111a1a95265a
125aa6b00100
132b493384c4
141691a73c52
15bd5a36a00
hex7189ca490

30477690000 has 300 divisors, whose sum is σ = 106978627756. Its totient is φ = 8097408000.

The previous prime is 30477689999. The next prime is 30477690017. The reversal of 30477690000 is 9677403.

It can be written as a sum of positive squares in 10 ways, for example, as 27514847376 + 2962842624 = 165876^2 + 54432^2 .

It is a tau number, because it is divible by the number of its divisors (300).

It is a super-2 number, since 2×304776900002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 35729574 + ... + 35730426.

Almost surely, 230477690000 is an apocalyptic number.

30477690000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30477690000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53489313878).

30477690000 is an abundant number, since it is smaller than the sum of its proper divisors (76500937756).

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

30477690000 is a wasteful number, since it uses less digits than its factorization.

30477690000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The spelling of 30477690000 in words is "thirty billion, four hundred seventy-seven million, six hundred ninety thousand".