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1042451031 = 31073247511
BaseRepresentation
bin111110001000101…
…000101001010111
32200122112222222110
4332020220221113
54113331413111
6251235202103
734555454556
oct7610505127
92618488873
101042451031
11495488986
12251146333
13137c8153b
149c63bd9d
15617b95a6
hex3e228a57

1042451031 has 8 divisors (see below), whose sum is σ = 1402925184. Its totient is φ = 688472120.

The previous prime is 1042451029. The next prime is 1042451041. The reversal of 1042451031 is 1301542401.

1042451031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1042451031 - 21 = 1042451029 is a prime.

It is a super-2 number, since 2×10424510312 = 2173408304065925922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1042450989 and 1042451007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042451041) 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, 1623435 + ... + 1624076.

It is an arithmetic number, because the mean of its divisors is an integer number (175365648).

Almost surely, 21042451031 is an apocalyptic number.

1042451031 is a deficient number, since it is larger than the sum of its proper divisors (360474153).

1042451031 is a wasteful number, since it uses less digits than its factorization.

1042451031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247621.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1042451031 is about 32287.0102518025. The cubic root of 1042451031 is about 1013.9547040833.

Adding to 1042451031 its reverse (1301542401), we get a palindrome (2343993432).

The spelling of 1042451031 in words is "one billion, forty-two million, four hundred fifty-one thousand, thirty-one".

Divisors: 1 3 107 321 3247511 9742533 347483677 1042451031