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20207472233 = 1331531815227
BaseRepresentation
bin10010110100011101…
…011000111001101001
31221011021220221122112
4102310131120321221
5312341103102413
613141100132105
71313521452134
oct226435307151
957137827575
1020207472233
11862a655a83
123abb537035
131ba067a080
14d99a9121b
157d409e2a8
hex4b4758e69

20207472233 has 32 divisors (see below), whose sum is σ = 23018591232. Its totient is φ = 17609529600.

The previous prime is 20207472167. The next prime is 20207472239. The reversal of 20207472233 is 33227470202.

It is not a de Polignac number, because 20207472233 - 212 = 20207468137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20207472233.

It is not an unprimeable number, because it can be changed into a prime (20207472239) 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, 3863366 + ... + 3868592.

It is an arithmetic number, because the mean of its divisors is an integer number (719330976).

Almost surely, 220207472233 is an apocalyptic number.

It is an amenable number.

20207472233 is a deficient number, since it is larger than the sum of its proper divisors (2811118999).

20207472233 is a wasteful number, since it uses less digits than its factorization.

20207472233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505.

The product of its (nonzero) digits is 28224, while the sum is 32.

The spelling of 20207472233 in words is "twenty billion, two hundred seven million, four hundred seventy-two thousand, two hundred thirty-three".

Divisors: 1 13 31 53 181 403 689 1643 2353 5227 5611 9593 21359 67951 72943 124709 162037 277031 297383 946087 2106481 3601403 3865979 8587961 12299131 29328697 50142611 111643493 381273061 651853943 1554420941 20207472233