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3122143020 = 22325149116411
BaseRepresentation
bin1011101000011000…
…0001111100101100
322001120212022001200
42322012001330230
522343232034040
61233450205500
7140240530533
oct27206017454
98046768050
103122143020
111362406297
12731723890
133a9aaba09
1421891d31a
1513416e630
hexba181f2c

3122143020 has 72 divisors (see below), whose sum is σ = 9534142800. Its totient is φ = 826976640.

The previous prime is 3122143009. The next prime is 3122143069. The reversal of 3122143020 is 203412213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3122142984 and 3122143002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31386 + ... + 85025.

It is an arithmetic number, because the mean of its divisors is an integer number (132418650).

Almost surely, 23122143020 is an apocalyptic number.

3122143020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3122143020 is an abundant number, since it is smaller than the sum of its proper divisors (6411999780).

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

3122143020 is a wasteful number, since it uses less digits than its factorization.

3122143020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116575 (or 116570 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3122143020 is about 55876.1399883707. The cubic root of 3122143020 is about 1461.5631940512.

Adding to 3122143020 its reverse (203412213), we get a palindrome (3325555233).

The spelling of 3122143020 in words is "three billion, one hundred twenty-two million, one hundred forty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 149 180 298 447 596 745 894 1341 1490 1788 2235 2682 2980 4470 5364 6705 8940 13410 26820 116411 232822 349233 465644 582055 698466 1047699 1164110 1396932 1746165 2095398 2328220 3492330 4190796 5238495 6984660 10476990 17345239 20953980 34690478 52035717 69380956 86726195 104071434 156107151 173452390 208142868 260178585 312214302 346904780 520357170 624428604 780535755 1040714340 1561071510 3122143020