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21462627061 = 263457178571
BaseRepresentation
bin10011111111010001…
…011011001011110101
32001101202201102101101
4103333101123023311
5322423413031221
613505414330101
71356602214511
oct237721331365
961352642341
1021462627061
119114103417
1241ab959931
132040713035
14107865b141
15859381d91
hex4ff45b2f5

21462627061 has 8 divisors (see below), whose sum is σ = 21591497664. Its totient is φ = 21334115040.

The previous prime is 21462627049. The next prime is 21462627157. The reversal of 21462627061 is 16072626412.

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

It is a cyclic number.

It is not a de Polignac number, because 21462627061 - 225 = 21429072629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21462627061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21462624061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30906 + ... + 209476.

It is an arithmetic number, because the mean of its divisors is an integer number (2698937208).

Almost surely, 221462627061 is an apocalyptic number.

It is an amenable number.

21462627061 is a deficient number, since it is larger than the sum of its proper divisors (128870603).

21462627061 is a wasteful number, since it uses less digits than its factorization.

21462627061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179291.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 21462627061 in words is "twenty-one billion, four hundred sixty-two million, six hundred twenty-seven thousand, sixty-one".

Divisors: 1 263 457 120191 178571 46964173 81606947 21462627061