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120031400653 = 127945129139
BaseRepresentation
bin110111111001001101…
…1011101001011001101
3102110211012020221002121
41233302123131023031
53431311014310103
6131050333252541
711446330033333
oct1576233351315
9373735227077
10120031400653
11469a566197a
121b31a334151
13b41b85ca38
145b4959bb53
1531c7b096bd
hex1bf26dd2cd

120031400653 has 4 divisors (see below), whose sum is σ = 120976529920. Its totient is φ = 119086271388.

The previous prime is 120031400623. The next prime is 120031400663. The reversal of 120031400653 is 356004130021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120031400653 - 213 = 120031392461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120031400623) 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 3 ways as a sum of consecutive naturals, for example, 472564443 + ... + 472564696.

It is an arithmetic number, because the mean of its divisors is an integer number (30244132480).

Almost surely, 2120031400653 is an apocalyptic number.

It is an amenable number.

120031400653 is a deficient number, since it is larger than the sum of its proper divisors (945129267).

120031400653 is an equidigital number, since it uses as much as digits as its factorization.

120031400653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945129266.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 120031400653 its reverse (356004130021), we get a palindrome (476035530674).

The spelling of 120031400653 in words is "one hundred twenty billion, thirty-one million, four hundred thousand, six hundred fifty-three".

Divisors: 1 127 945129139 120031400653