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2040212040 = 2335108715641
BaseRepresentation
bin111100110011011…
…0010101001001000
312021012000111202220
41321212302221020
513134243241130
6534240454040
7101362342026
oct17146625110
95235014686
102040212040
11957712559
1248b31a320
132668b6579
14154d65716
15be1a7410
hex799b2a48

2040212040 has 64 divisors (see below), whose sum is σ = 6126658560. Its totient is φ = 543521280.

The previous prime is 2040212023. The next prime is 2040212081. The reversal of 2040212040 is 402120402.

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

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, 122620 + ... + 138260.

It is an arithmetic number, because the mean of its divisors is an integer number (95729040).

Almost surely, 22040212040 is an apocalyptic number.

2040212040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040212040 is an abundant number, since it is smaller than the sum of its proper divisors (4086446520).

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

2040212040 is a wasteful number, since it uses less digits than its factorization.

2040212040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16742 (or 16738 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2040212040 is about 45168.7064238063. The cubic root of 2040212040 is about 1268.3090812116.

Adding to 2040212040 its reverse (402120402), we get a palindrome (2442332442).

The spelling of 2040212040 in words is "two billion, forty million, two hundred twelve thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1087 2174 3261 4348 5435 6522 8696 10870 13044 15641 16305 21740 26088 31282 32610 43480 46923 62564 65220 78205 93846 125128 130440 156410 187692 234615 312820 375384 469230 625640 938460 1876920 17001767 34003534 51005301 68007068 85008835 102010602 136014136 170017670 204021204 255026505 340035340 408042408 510053010 680070680 1020106020 2040212040