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30477102240 = 25351317299907
BaseRepresentation
bin11100011000100100…
…111010110010100000
32220200000001012121110
4130120210322302200
5444404114232430
622000114023320
72126152044324
oct343044726240
986600035543
1030477102240
1111a1a591002
125aa6877b40
132b49190b10
14169195d984
15bd596c7b0
hex71893aca0

30477102240 has 384 divisors, whose sum is σ = 113255573760. Its totient is φ = 6816595968.

The previous prime is 30477102221. The next prime is 30477102259. The reversal of 30477102240 is 4220177403.

It is an interprime number because it is at equal distance from previous prime (30477102221) and next prime (30477102259).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 30477102198 and 30477102207.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3071367 + ... + 3081273.

It is an arithmetic number, because the mean of its divisors is an integer number (294936390).

Almost surely, 230477102240 is an apocalyptic number.

30477102240 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 30477102240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56627786880).

30477102240 is an abundant number, since it is smaller than the sum of its proper divisors (82778471520).

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

30477102240 is a wasteful number, since it uses less digits than its factorization.

30477102240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9984 (or 9976 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

Adding to 30477102240 its reverse (4220177403), we get a palindrome (34697279643).

The spelling of 30477102240 in words is "thirty billion, four hundred seventy-seven million, one hundred two thousand, two hundred forty".