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5216204021 = 77919747881
BaseRepresentation
bin1001101101110100…
…01111010011110101
3111110112012121201112
410312322033103311
541140322012041
62221333204405
7243156000620
oct46672172365
914415177645
105216204021
112237458316
121016a90705
1365189a572
14376aa0db7
15207e11deb
hex136e8f4f5

5216204021 has 16 divisors (see below), whose sum is σ = 6067607040. Its totient is φ = 4391936640.

The previous prime is 5216203999. The next prime is 5216204039. The reversal of 5216204021 is 1204026125.

It is a happy number.

It is not a de Polignac number, because 5216204021 - 214 = 5216187637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216204221) 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, 85001 + ... + 132881.

It is an arithmetic number, because the mean of its divisors is an integer number (379225440).

Almost surely, 25216204021 is an apocalyptic number.

It is an amenable number.

5216204021 is a deficient number, since it is larger than the sum of its proper divisors (851403019).

5216204021 is a wasteful number, since it uses less digits than its factorization.

5216204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48164.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 5216204021 is about 72223.2927870227. The cubic root of 5216204021 is about 1734.2759032203.

The spelling of 5216204021 in words is "five billion, two hundred sixteen million, two hundred four thousand, twenty-one".

Divisors: 1 7 79 197 553 1379 15563 47881 108941 335167 3782599 9432557 26478193 66027899 745172003 5216204021