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1031022013 = 7891654931
BaseRepresentation
bin111101011101000…
…010010110111101
32122212001100022111
4331131002112331
54102420201023
6250150214021
734356354040
oct7535022675
92585040274
101031022013
11489a9210a
12249354311
131357ac3c8
149ad04c57
15607ad00d
hex3d7425bd

1031022013 has 8 divisors (see below), whose sum is σ = 1191551040. Its totient is φ = 873803040.

The previous prime is 1031021917. The next prime is 1031022029. The reversal of 1031022013 is 3102201301.

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 1031022013 - 29 = 1031021501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031021984 and 1031022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031022073) 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, 826843 + ... + 828088.

It is an arithmetic number, because the mean of its divisors is an integer number (148943880).

Almost surely, 21031022013 is an apocalyptic number.

It is an amenable number.

1031022013 is a deficient number, since it is larger than the sum of its proper divisors (160529027).

1031022013 is an equidigital number, since it uses as much as digits as its factorization.

1031022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655027.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1031022013 is about 32109.5314976722. The cubic root of 1031022013 is about 1010.2355471278.

Adding to 1031022013 its reverse (3102201301), we get a palindrome (4133223314).

It can be divided in two parts, 10310 and 22013, that added together give a palindrome (32323).

The spelling of 1031022013 in words is "one billion, thirty-one million, twenty-two thousand, thirteen".

Divisors: 1 7 89 623 1654931 11584517 147288859 1031022013