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3720216252 = 2237119122861
BaseRepresentation
bin1101110110111101…
…1111111010111100
3100121021020120022010
43131233133322330
530104333410002
61413053051220
7161122213344
oct33557377274
910537216263
103720216252
111639a68595
12879a86b10
134739815bc
14274123d24
1516b90b46c
hexddbdfebc

3720216252 has 48 divisors (see below), whose sum is σ = 8849240064. Its totient is φ = 1216152000.

The previous prime is 3720216223. The next prime is 3720216257. The reversal of 3720216252 is 2526120273.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720216257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151302 + ... + 174162.

It is an arithmetic number, because the mean of its divisors is an integer number (184359168).

Almost surely, 23720216252 is an apocalyptic number.

It is an amenable number.

3720216252 is an abundant number, since it is smaller than the sum of its proper divisors (5129023812).

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

3720216252 is a wasteful number, since it uses less digits than its factorization.

3720216252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23130 (or 23128 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 3720216252 is about 60993.5754977522. The cubic root of 3720216252 is about 1549.4922029958.

The spelling of 3720216252 in words is "three billion, seven hundred twenty million, two hundred sixteen thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 71 142 191 213 284 382 426 573 764 852 1146 2292 13561 22861 27122 40683 45722 54244 68583 81366 91444 137166 162732 274332 1623131 3246262 4366451 4869393 6492524 8732902 9738786 13099353 17465804 19477572 26198706 52397412 310018021 620036042 930054063 1240072084 1860108126 3720216252