Search a number
-
+
10454020623 = 3543020661
BaseRepresentation
bin10011011110001101…
…11011001000001111
3222222120002021100000
421233012323020033
5132402212124443
64445201535343
7520026465144
oct115706731017
928876067300
1010454020623
114485027472
122039044553
13ca7a94227
1471258a3cb
15412b928d3
hex26f1bb20f

10454020623 has 12 divisors (see below), whose sum is σ = 15659520968. Its totient is φ = 6969346920.

The previous prime is 10454020583. The next prime is 10454020657. The reversal of 10454020623 is 32602045401.

10454020623 is a `hidden beast` number, since 1 + 0 + 454 + 0 + 206 + 2 + 3 = 666.

It is not a de Polignac number, because 10454020623 - 29 = 10454020111 is a prime.

It is a super-2 number, since 2×104540206232 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10454020693) 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 11 ways as a sum of consecutive naturals, for example, 21510088 + ... + 21510573.

Almost surely, 210454020623 is an apocalyptic number.

10454020623 is a deficient number, since it is larger than the sum of its proper divisors (5205500345).

10454020623 is an frugal number, since it uses more digits than its factorization.

10454020623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43020676 (or 43020664 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 10454020623 in words is "ten billion, four hundred fifty-four million, twenty thousand, six hundred twenty-three".

Divisors: 1 3 9 27 81 243 43020661 129061983 387185949 1161557847 3484673541 10454020623