Search a number
-
+
11431504860 = 2235190525081
BaseRepresentation
bin10101010010101111…
…01110101111011100
31002111200101121121220
422221113232233130
5141402431123420
65130200453340
7553166121336
oct125127565734
932450347556
1011431504860
114936871886
12227047a250
131102449b79
147a6316456
1546d8c7840
hex2a95eebdc

11431504860 has 24 divisors (see below), whose sum is σ = 32008213776. Its totient is φ = 3048401280.

The previous prime is 11431504813. The next prime is 11431504883. The reversal of 11431504860 is 6840513411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95262481 + ... + 95262600.

It is an arithmetic number, because the mean of its divisors is an integer number (1333675574).

Almost surely, 211431504860 is an apocalyptic number.

11431504860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11431504860 is an abundant number, since it is smaller than the sum of its proper divisors (20576708916).

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

11431504860 is a wasteful number, since it uses less digits than its factorization.

11431504860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190525093 (or 190525091 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 11431504860 in words is "eleven billion, four hundred thirty-one million, five hundred four thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 190525081 381050162 571575243 762100324 952625405 1143150486 1905250810 2286300972 2857876215 3810501620 5715752430 11431504860