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30900897698880 = 26351117414198309
BaseRepresentation
bin1110000011010101011010…
…00001111101010001000000
311001102002121200122200002010
413001222231001331101000
513022240014302331010
6145415402035252520
76336342023442516
oct701525501752100
9131362550580063
1030900897698880
119933aa7191350
12357097414a140
131431c32b97511
1478b87ba904b6
15388c0b02a620
hex1c1aad07d440

30900897698880 has 448 divisors, whose sum is σ = 116089384239360. Its totient is φ = 6878507827200.

The previous prime is 30900897698873. The next prime is 30900897698927. The reversal of 30900897698880 is 8889679800903.

It is a super-4 number, since 4×309008976988804 (a number of 55 digits) contains 4444 as substring.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5261166 + ... + 9459474.

It is an arithmetic number, because the mean of its divisors is an integer number (259128089820).

Almost surely, 230900897698880 is an apocalyptic number.

30900897698880 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 30900897698880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58044692119680).

30900897698880 is an abundant number, since it is smaller than the sum of its proper divisors (85188486540480).

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

30900897698880 is a wasteful number, since it uses less digits than its factorization.

30900897698880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198398 (or 4198388 counting only the distinct ones).

The product of its (nonzero) digits is 376233984, while the sum is 75.

The spelling of 30900897698880 in words is "thirty trillion, nine hundred billion, eight hundred ninety-seven million, six hundred ninety-eight thousand, eight hundred eighty".