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30487120215552 = 293672111311657
BaseRepresentation
bin1101110111010010101011…
…11110000111111000000000
310222221112120211022122000000
412323221111332013320000
512444000110233344202
6144501331212000000
76264423155040600
oct673512576077000
9128845524278000
1030487120215552
1197945736228a0
123504736a60000
131401c000893a0
14775827bb8c00
1537d08ed0491c
hex1bba55f87e00

30487120215552 has 1680 divisors, whose sum is σ = 124825692488112. Its totient is φ = 7308972195840.

The previous prime is 30487120215547. The next prime is 30487120215553. The reversal of 30487120215552 is 25551202178403.

30487120215552 is a `hidden beast` number, since 3 + 0 + 4 + 8 + 71 + 2 + 0 + 21 + 5 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 30487120215498 and 30487120215507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30487120215553) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 2615342908 + ... + 2615354564.

Almost surely, 230487120215552 is an apocalyptic number.

30487120215552 is a gapful number since it is divisible by the number (32) 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 30487120215552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62412846244056).

30487120215552 is an abundant number, since it is smaller than the sum of its proper divisors (94338572272560).

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

30487120215552 is a wasteful number, since it uses less digits than its factorization.

30487120215552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11731 (or 11693 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 30487120215552 in words is "thirty trillion, four hundred eighty-seven billion, one hundred twenty million, two hundred fifteen thousand, five hundred fifty-two".