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4642881069 = 31547627023
BaseRepresentation
bin1000101001011110…
…01011111000101101
3102222120101210111010
410110233023320231
534002034143234
62044413015433
7223024560261
oct42457137055
912876353433
104642881069
111a728702a2
12a96a84579
1358cb82308
143208a00a1
151c29136e9
hex114bcbe2d

4642881069 has 4 divisors (see below), whose sum is σ = 6190508096. Its totient is φ = 3095254044.

The previous prime is 4642881053. The next prime is 4642881073. The reversal of 4642881069 is 9601882464.

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 not a de Polignac number, because 4642881069 - 24 = 4642881053 is a prime.

It is a super-2 number, since 2×46428810692 = 43112689241757165522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4642881029) 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, 773813509 + ... + 773813514.

It is an arithmetic number, because the mean of its divisors is an integer number (1547627024).

Almost surely, 24642881069 is an apocalyptic number.

It is an amenable number.

4642881069 is a deficient number, since it is larger than the sum of its proper divisors (1547627027).

4642881069 is a wasteful number, since it uses less digits than its factorization.

4642881069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547627026.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 4642881069 is about 68138.6899565878. The cubic root of 4642881069 is about 1668.2553246095.

The spelling of 4642881069 in words is "four billion, six hundred forty-two million, eight hundred eighty-one thousand, sixty-nine".

Divisors: 1 3 1547627023 4642881069