Search a number
-
+
1213027153715 = 513131142457681
BaseRepresentation
bin10001101001101110000…
…011010111011100110011
311021222000221121002100002
4101221232003113130303
5124333234422404330
62325131301420215
7153431641453016
oct21515603273463
94258027532302
101213027153715
11428495228533
1217711440a66b
138a5074a5ca0
14429d472137d
1521848702e45
hex11a6e0d7733

1213027153715 has 16 divisors (see below), whose sum is σ = 1579570778016. Its totient is φ = 888935923200.

The previous prime is 1213027153693. The next prime is 1213027153763. The reversal of 1213027153715 is 5173517203121.

It is not a de Polignac number, because 1213027153715 - 26 = 1213027153651 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71220326 + ... + 71237355.

It is an arithmetic number, because the mean of its divisors is an integer number (98723173626).

Almost surely, 21213027153715 is an apocalyptic number.

1213027153715 is a deficient number, since it is larger than the sum of its proper divisors (366543624301).

1213027153715 is a wasteful number, since it uses less digits than its factorization.

1213027153715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142457830.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 1213027153715 in words is "one trillion, two hundred thirteen billion, twenty-seven million, one hundred fifty-three thousand, seven hundred fifteen".

Divisors: 1 5 13 65 131 655 1703 8515 142457681 712288405 1851949853 9259749265 18661956211 93309781055 242605430743 1213027153715