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3131401110 = 235671579923
BaseRepresentation
bin1011101010100101…
…0110001110010110
322002020021122202220
42322221112032112
522403114313420
61234420443210
7140412320205
oct27251261626
98066248686
103131401110
11136765a002
12734849506
133ab9a0986
14219c4d23c
15134d9c840
hexbaa56396

3131401110 has 64 divisors (see below), whose sum is σ = 7676888832. Its totient is φ = 817255296.

The previous prime is 3131401103. The next prime is 3131401123. The reversal of 3131401110 is 111041313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3131401110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310609 + ... + 320531.

It is an arithmetic number, because the mean of its divisors is an integer number (119951388).

Almost surely, 23131401110 is an apocalyptic number.

3131401110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3131401110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3838444416).

3131401110 is an abundant number, since it is smaller than the sum of its proper divisors (4545487722).

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

3131401110 is a wasteful number, since it uses less digits than its factorization.

3131401110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10157.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 3131401110 is about 55958.9234170923. The cubic root of 3131401110 is about 1463.0064261223.

Adding to 3131401110 its reverse (111041313), we get a palindrome (3242442423).

The spelling of 3131401110 in words is "three billion, one hundred thirty-one million, four hundred one thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 67 134 157 201 314 335 402 471 670 785 942 1005 1570 2010 2355 4710 9923 10519 19846 21038 29769 31557 49615 52595 59538 63114 99230 105190 148845 157785 297690 315570 664841 1329682 1557911 1994523 3115822 3324205 3989046 4673733 6648410 7789555 9347466 9972615 15579110 19945230 23368665 46737330 104380037 208760074 313140111 521900185 626280222 1043800370 1565700555 3131401110