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4742251901 = 32971143831
BaseRepresentation
bin1000110101010100…
…10000010101111101
3110020111101100122022
410122222100111331
534203004030101
62102322525525
7225342322202
oct43252202575
913214340568
104742251901
112013972052
12b042068a5
135a763561a
1432db69ca9
151cb4e1a1b
hex11aa9057d

4742251901 has 4 divisors (see below), whose sum is σ = 4742428704. Its totient is φ = 4742075100.

The previous prime is 4742251897. The next prime is 4742251907. The reversal of 4742251901 is 1091522474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4742251901 - 22 = 4742251897 is a prime.

It is a super-2 number, since 2×47422519012 = 44977906185076227602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4742251907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38945 + ... + 104886.

It is an arithmetic number, because the mean of its divisors is an integer number (1185607176).

Almost surely, 24742251901 is an apocalyptic number.

It is an amenable number.

4742251901 is a deficient number, since it is larger than the sum of its proper divisors (176803).

4742251901 is a wasteful number, since it uses less digits than its factorization.

4742251901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176802.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 4742251901 is about 68864.0102012655. The cubic root of 4742251901 is about 1680.0732088515.

The spelling of 4742251901 in words is "four billion, seven hundred forty-two million, two hundred fifty-one thousand, nine hundred one".

Divisors: 1 32971 143831 4742251901