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1012040431 = 16319132507
BaseRepresentation
bin111100010100101…
…000001011101111
32121112022222110221
4330110220023233
54033040243211
6244231312211
734036126123
oct7424501357
92545288427
101012040431
1147a2a7a56
12242b1b667
131318946bc
14985a3583
155dcadc71
hex3c5282ef

1012040431 has 8 divisors (see below), whose sum is σ = 1023611904. Its totient is φ = 1000534680.

The previous prime is 1012040401. The next prime is 1012040437. The reversal of 1012040431 is 1340402101.

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 1012040431 - 25 = 1012040399 is a prime.

It is a super-2 number, since 2×10120404312 = 2048451667957331522, 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 (1012040437) 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, 14880 + ... + 47386.

It is an arithmetic number, because the mean of its divisors is an integer number (127951488).

Almost surely, 21012040431 is an apocalyptic number.

1012040431 is a deficient number, since it is larger than the sum of its proper divisors (11571473).

1012040431 is a wasteful number, since it uses less digits than its factorization.

1012040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32861.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1012040431 is about 31812.5829036248. The cubic root of 1012040431 is about 1003.9974758935.

Adding to 1012040431 its reverse (1340402101), we get a palindrome (2352442532).

The spelling of 1012040431 in words is "one billion, twelve million, forty thousand, four hundred thirty-one".

Divisors: 1 163 191 31133 32507 5298641 6208837 1012040431