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3145225178880 = 28345107509557
BaseRepresentation
bin101101110001001110000…
…001111000111100000000
3102010200101011001202010000
4231301032001320330000
5403012410121211010
610404521351040000
7443143416624051
oct55611601707400
912120334052100
103145225178880
111002978688074
12429695670000
1319a793ab2505
14ac330480728
1556c3404b7c0
hex2dc4e078f00

3145225178880 has 720 divisors, whose sum is σ = 11402121155040. Its totient is φ = 827766964224.

The previous prime is 3145225178869. The next prime is 3145225178903. The reversal of 3145225178880 is 888715225413.

It is a happy number.

3145225178880 is a `hidden beast` number, since 3 + 1 + 45 + 2 + 2 + 517 + 8 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5646723562 + ... + 5646724118.

It is an arithmetic number, because the mean of its divisors is an integer number (15836279382).

Almost surely, 23145225178880 is an apocalyptic number.

3145225178880 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 3145225178880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5701060577520).

3145225178880 is an abundant number, since it is smaller than the sum of its proper divisors (8256895976160).

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

3145225178880 is a wasteful number, since it uses less digits than its factorization.

3145225178880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 3145225178880 in words is "three trillion, one hundred forty-five billion, two hundred twenty-five million, one hundred seventy-eight thousand, eight hundred eighty".