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3142856860 = 22511137691429
BaseRepresentation
bin1011101101010100…
…0011000010011100
322010000211200002221
42323111003002130
522414032404420
61235510155124
7140611561663
oct27325030234
98100750087
103142856860
111373073970
12738652aa4
133b1182020
1421b591dda
15135db1caa
hexbb54309c

3142856860 has 96 divisors (see below), whose sum is σ = 7769361600. Its totient is φ = 1052835840.

The previous prime is 3142856797. The next prime is 3142856867. The reversal of 3142856860 is 686582413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142856867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2198626 + ... + 2200054.

It is an arithmetic number, because the mean of its divisors is an integer number (80930850).

Almost surely, 23142856860 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 3142856860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3884680800).

3142856860 is an abundant number, since it is smaller than the sum of its proper divisors (4626504740).

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

3142856860 is a wasteful number, since it uses less digits than its factorization.

3142856860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231 (or 2229 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 3142856860 is about 56061.1885353852. The cubic root of 3142856860 is about 1464.7883163958.

It can be divided in two parts, 31428 and 56860, that added together give a palindrome (88288).

The spelling of 3142856860 in words is "three billion, one hundred forty-two million, eight hundred fifty-six thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 769 1429 1430 1538 2858 2860 3076 3845 5716 7145 7690 8459 9997 14290 15380 15719 16918 18577 19994 28580 31438 33836 37154 39988 42295 49985 62876 74308 78595 84590 92885 99970 109967 157190 169180 185770 199940 204347 219934 314380 371540 408694 439868 549835 817388 1021735 1098901 1099670 2043470 2197802 2199340 4086940 4395604 5494505 10989010 12087911 14285713 21978020 24175822 28571426 48351644 57142852 60439555 71428565 120879110 142857130 157142843 241758220 285714260 314285686 628571372 785714215 1571428430 3142856860