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1031402444 = 221715167683
BaseRepresentation
bin111101011110011…
…111001111001100
32122212202200011112
4331132133033030
54103014334234
6250202311152
734362530132
oct7536371714
92585680145
101031402444
1148a221a16
122494b84b8
131358b3607
149ada3752
1560835ace
hex3d79f3cc

1031402444 has 12 divisors (see below), whose sum is σ = 1911128184. Its totient is φ = 485365824.

The previous prime is 1031402443. The next prime is 1031402459. The reversal of 1031402444 is 4442041301.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1031402443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7583774 + ... + 7583909.

It is an arithmetic number, because the mean of its divisors is an integer number (159260682).

Almost surely, 21031402444 is an apocalyptic number.

It is an amenable number.

1031402444 is a deficient number, since it is larger than the sum of its proper divisors (879725740).

1031402444 is a wasteful number, since it uses less digits than its factorization.

1031402444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15167704 (or 15167702 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1031402444 is about 32115.4549088130. The cubic root of 1031402444 is about 1010.3597855547.

Adding to 1031402444 its reverse (4442041301), we get a palindrome (5473443745).

The spelling of 1031402444 in words is "one billion, thirty-one million, four hundred two thousand, four hundred forty-four".

Divisors: 1 2 4 17 34 68 15167683 30335366 60670732 257850611 515701222 1031402444