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42630643231 = 114019664621
BaseRepresentation
bin100111101100111110…
…111111111000011111
311002001000002001121021
4213230332333320133
51144301421040411
631330110345011
73036266326411
oct475476777037
9132030061537
1042630643231
1117096983260
128318abb167
1340350941a7
1420c5b089b1
15119791ba71
hex9ecfbfe1f

42630643231 has 8 divisors (see below), whose sum is σ = 46622136528. Its totient is φ = 38658480000.

The previous prime is 42630643229. The next prime is 42630643243. The reversal of 42630643231 is 13234603624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42630643231 - 21 = 42630643229 is a prime.

It is a super-2 number, since 2×426306432312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630643031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4827900 + ... + 4836721.

It is an arithmetic number, because the mean of its divisors is an integer number (5827767066).

Almost surely, 242630643231 is an apocalyptic number.

42630643231 is a deficient number, since it is larger than the sum of its proper divisors (3991493297).

42630643231 is a wasteful number, since it uses less digits than its factorization.

42630643231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9665033.

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 42630643231 in words is "forty-two billion, six hundred thirty million, six hundred forty-three thousand, two hundred thirty-one".

Divisors: 1 11 401 4411 9664621 106310831 3875513021 42630643231