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1013432431 = 11194848959
BaseRepresentation
bin111100011001111…
…100000001101111
32121121221200221111
4330121330001233
54033414314211
6244321212451
734054014334
oct7431740157
92547850844
101013432431
11480068870
12243491127
13131c6117b
149884698b
155de86421
hex3c67c06f

1013432431 has 8 divisors (see below), whose sum is σ = 1163750400. Its totient is φ = 872812440.

The previous prime is 1013432389. The next prime is 1013432437. The reversal of 1013432431 is 1342343101.

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 1013432431 - 213 = 1013424239 is a prime.

It is a super-2 number, since 2×10134324312 = 2054090584405139522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013432437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2424271 + ... + 2424688.

It is an arithmetic number, because the mean of its divisors is an integer number (145468800).

Almost surely, 21013432431 is an apocalyptic number.

1013432431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1013432431 is a deficient number, since it is larger than the sum of its proper divisors (150317969).

1013432431 is a wasteful number, since it uses less digits than its factorization.

1013432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848989.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1013432431 is about 31834.4535213030. The cubic root of 1013432431 is about 1004.4575774790.

Adding to 1013432431 its reverse (1342343101), we get a palindrome (2355775532).

The spelling of 1013432431 in words is "one billion, thirteen million, four hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 11 19 209 4848959 53338549 92130221 1013432431