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421142183180 = 225431034754371
BaseRepresentation
bin1100010000011100000…
…01111011110100001100
31111021001010022120000022
412020032001323310030
523344444344330210
6521245310321312
742266203331015
oct6101601736414
91437033276008
10421142183180
11152672868564
12697537b9238
13309378460c4
141655204800c
15ae4ca7e155
hex620e07bd0c

421142183180 has 48 divisors (see below), whose sum is σ = 913752263424. Its totient is φ = 162941768640.

The previous prime is 421142183177. The next prime is 421142183191. The reversal of 421142183180 is 81381241124.

It is a self number, because there is not a number n which added to its sum of digits gives 421142183180.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2288606 + ... + 2465765.

It is an arithmetic number, because the mean of its divisors is an integer number (19036505488).

Almost surely, 2421142183180 is an apocalyptic number.

It is an amenable number.

421142183180 is an abundant number, since it is smaller than the sum of its proper divisors (492610080244).

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

421142183180 is a wasteful number, since it uses less digits than its factorization.

421142183180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754526 (or 4754524 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The spelling of 421142183180 in words is "four hundred twenty-one billion, one hundred forty-two million, one hundred eighty-three thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 43 86 103 172 206 215 412 430 515 860 1030 2060 4429 8858 17716 22145 44290 88580 4754371 9508742 19017484 23771855 47543710 95087420 204437953 408875906 489700213 817751812 979400426 1022189765 1958800852 2044379530 2448501065 4088759060 4897002130 9794004260 21057109159 42114218318 84228436636 105285545795 210571091590 421142183180