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3120143430 = 235239714657
BaseRepresentation
bin1011100111111001…
…1001110001000110
322001110002201010210
42321332121301012
522342224042210
61233335300250
7140214532035
oct27176316106
98043081123
103120143430
11136126aa38
12730b1a686
133a955b821
1421855c71c
15133dc6e20
hexb9f99c46

3120143430 has 64 divisors (see below), whose sum is σ = 7823651328. Its totient is φ = 794872320.

The previous prime is 3120143423. The next prime is 3120143441. The reversal of 3120143430 is 343410213.

It is a junction number, because it is equal to n+sod(n) for n = 3120143397 and 3120143406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667662 + ... + 672318.

It is an arithmetic number, because the mean of its divisors is an integer number (122244552).

Almost surely, 23120143430 is an apocalyptic number.

3120143430 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 3120143430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3911825664).

3120143430 is an abundant number, since it is smaller than the sum of its proper divisors (4703507898).

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

3120143430 is a wasteful number, since it uses less digits than its factorization.

3120143430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3120143430 is about 55858.2440647753. The cubic root of 3120143430 is about 1461.2511059261.

Adding to 3120143430 its reverse (343410213), we get a palindrome (3463553643).

The spelling of 3120143430 in words is "three billion, one hundred twenty million, one hundred forty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 971 1942 2913 4657 4855 5826 9314 9710 13971 14565 22333 23285 27942 29130 44666 46570 66999 69855 107111 111665 133998 139710 214222 223330 321333 334995 535555 642666 669990 1071110 1606665 3213330 4521947 9043894 13565841 22609735 27131682 45219470 67829205 104004781 135658410 208009562 312014343 520023905 624028686 1040047810 1560071715 3120143430