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120002631 = 375714411
BaseRepresentation
bin1110010011100…
…01100001000111
322100210202122220
413021301201013
5221210041011
615524023423
72655001620
oct711614107
9270722586
10120002631
1161813831
1234231b73
131bb28198
1411d1aa47
15a806506
hex7271847

120002631 has 8 divisors (see below), whose sum is σ = 182861184. Its totient is φ = 68572920.

The previous prime is 120002629. The next prime is 120002633. The reversal of 120002631 is 136200021.

It is an interprime number because it is at equal distance from previous prime (120002629) and next prime (120002633).

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

It is not a de Polignac number, because 120002631 - 21 = 120002629 is a prime.

It is a super-2 number, since 2×1200026312 = 28801262893844322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120002631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857185 + ... + 2857226.

It is an arithmetic number, because the mean of its divisors is an integer number (22857648).

Almost surely, 2120002631 is an apocalyptic number.

120002631 is a deficient number, since it is larger than the sum of its proper divisors (62858553).

120002631 is an equidigital number, since it uses as much as digits as its factorization.

120002631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714421.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 120002631 is about 10954.5712376158. The cubic root of 120002631 is about 493.2460196197.

Adding to 120002631 its reverse (136200021), we get a palindrome (256202652).

The spelling of 120002631 in words is "one hundred twenty million, two thousand, six hundred thirty-one".

Divisors: 1 3 7 21 5714411 17143233 40000877 120002631