Search a number
-
+
31142026254 = 2367203937993
BaseRepresentation
bin11101000000001101…
…011001110000001110
32222101100012211212210
4131000031121300032
51002234324320004
622150105411250
72151504566313
oct350015316016
988340184783
1031142026254
1112230953289
126051499b26
132c23b6b991
141715da6d0a
15c24012089
hex740359c0e

31142026254 has 32 divisors (see below), whose sum is σ = 63246332160. Its totient is φ = 10220455872.

The previous prime is 31142026229. The next prime is 31142026271. The reversal of 31142026254 is 45262024113.

It is a congruent 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, 800682 + ... + 838674.

It is an arithmetic number, because the mean of its divisors is an integer number (1976447880).

Almost surely, 231142026254 is an apocalyptic number.

31142026254 is an abundant number, since it is smaller than the sum of its proper divisors (32104305906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31142026254 is a wasteful number, since it uses less digits than its factorization.

31142026254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40104.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 31142026254 in words is "thirty-one billion, one hundred forty-two million, twenty-six thousand, two hundred fifty-four".

Divisors: 1 2 3 6 67 134 201 402 2039 4078 6117 12234 37993 75986 113979 136613 227958 273226 409839 819678 2545531 5091062 7636593 15273186 77467727 154935454 232403181 464806362 5190337709 10380675418 15571013127 31142026254