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920414653 = 7971154849
BaseRepresentation
bin110110110111000…
…110100110111101
32101010220220112121
4312313012212331
53341111232103
6231155402541
731544252434
oct6667064675
92333826477
10920414653
11432606174
122182b3451
131188c3772
148a35211b
1555c106bd
hex36dc69bd

920414653 has 4 divisors (see below), whose sum is σ = 921570300. Its totient is φ = 919259008.

The previous prime is 920414647. The next prime is 920414681. The reversal of 920414653 is 356414029.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 356414029 = 536724793.

It can be written as a sum of positive squares in 2 ways, for example, as 336612409 + 583802244 = 18347^2 + 24162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-920414653 is a prime.

It is a super-2 number, since 2×9204146532 = 1694326266914220818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920414603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576628 + ... + 578221.

It is an arithmetic number, because the mean of its divisors is an integer number (230392575).

Almost surely, 2920414653 is an apocalyptic number.

It is an amenable number.

920414653 is a deficient number, since it is larger than the sum of its proper divisors (1155647).

920414653 is a wasteful number, since it uses less digits than its factorization.

920414653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155646.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 920414653 is about 30338.3363584756. The cubic root of 920414653 is about 972.7349227048.

The spelling of 920414653 in words is "nine hundred twenty million, four hundred fourteen thousand, six hundred fifty-three".

Divisors: 1 797 1154849 920414653