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2247997972 = 221151090863
BaseRepresentation
bin1000010111111101…
…1011101000010100
312210200000010111011
42011333123220110
514100441413342
61011022222004
7106464444643
oct20577335024
95720003434
102247997972
11a53a33170
12528a24904
1329a96871c
141747b335a
15d254d717
hex85fdba14

2247997972 has 12 divisors (see below), whose sum is σ = 4291632576. Its totient is φ = 1021817240.

The previous prime is 2247997963. The next prime is 2247997987. The reversal of 2247997972 is 2797997422.

It is a super-2 number, since 2×22479979722 = 10106989764232225568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25545388 + ... + 25545475.

It is an arithmetic number, because the mean of its divisors is an integer number (357636048).

Almost surely, 22247997972 is an apocalyptic number.

2247997972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2247997972 is a deficient number, since it is larger than the sum of its proper divisors (2043634604).

2247997972 is a wasteful number, since it uses less digits than its factorization.

2247997972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51090878 (or 51090876 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 58.

The square root of 2247997972 is about 47413.0569780098. The cubic root of 2247997972 is about 1309.9819300967.

The spelling of 2247997972 in words is "two billion, two hundred forty-seven million, nine hundred ninety-seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 11 22 44 51090863 102181726 204363452 561999493 1123998986 2247997972