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42630666031 = 371321872203
BaseRepresentation
bin100111101100111111…
…000101011100101111
311002001000010012212201
4213230333011130233
51144301422303111
631330111042331
73036266453032
oct475477053457
9132030105781
1042630666031
11170969993a8
128318b103a7
1340350a1695
1420c5b13019
1511979236c1
hex9ecfc572f

42630666031 has 8 divisors (see below), whose sum is σ = 43816040144. Its totient is φ = 41447039040.

The previous prime is 42630666011. The next prime is 42630666047. The reversal of 42630666031 is 13066603624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42630666031 is a prime.

It is a super-2 number, since 2×426306660312 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630666011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387225 + ... + 484978.

It is an arithmetic number, because the mean of its divisors is an integer number (5477005018).

Almost surely, 242630666031 is an apocalyptic number.

42630666031 is a deficient number, since it is larger than the sum of its proper divisors (1185374113).

42630666031 is a wasteful number, since it uses less digits than its factorization.

42630666031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873561.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 42630666031 in words is "forty-two billion, six hundred thirty million, six hundred sixty-six thousand, thirty-one".

Divisors: 1 37 1321 48877 872203 32271511 1152180163 42630666031