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1310111004 = 2232323919861
BaseRepresentation
bin100111000010110…
…1011010100011100
310101022012112102210
41032011223110130
510140342023004
6334000120420
744315521416
oct11605532434
93338175383
101310111004
11612583874
12306906110
1317b568217
14c5dd39b6
157a03b089
hex4e16b51c

1310111004 has 48 divisors (see below), whose sum is σ = 3203343360. Its totient is φ = 415947840.

The previous prime is 1310110999. The next prime is 1310111021. The reversal of 1310111004 is 4001110131.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56034 + ... + 75894.

It is an arithmetic number, because the mean of its divisors is an integer number (66736320).

Almost surely, 21310111004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310111004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601671680).

1310111004 is an abundant number, since it is smaller than the sum of its proper divisors (1893232356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310111004 is a wasteful number, since it uses less digits than its factorization.

1310111004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20130 (or 20128 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1310111004 is about 36195.4555711073. The cubic root of 1310111004 is about 1094.2150860430.

Adding to 1310111004 its reverse (4001110131), we get a palindrome (5311221135).

The spelling of 1310111004 in words is "one billion, three hundred ten million, one hundred eleven thousand, four".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 239 276 478 717 956 1434 2868 5497 10994 16491 19861 21988 32982 39722 59583 65964 79444 119166 238332 456803 913606 1370409 1827212 2740818 4746779 5481636 9493558 14240337 18987116 28480674 56961348 109175917 218351834 327527751 436703668 655055502 1310111004