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4172354869 is a prime number
BaseRepresentation
bin1111100010110001…
…0001010100110101
3101202210000120212211
43320230101110311
532021110323434
61530004013421
7205252300624
oct37054212465
911683016784
104172354869
111851204a71
12985391271
13516549847
142b81bb6bb
1519646d464
hexf8b11535

4172354869 has 2 divisors, whose sum is σ = 4172354870. Its totient is φ = 4172354868.

The previous prime is 4172354827. The next prime is 4172354909. The reversal of 4172354869 is 9684532714.

It is a happy number.

4172354869 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2858292369 + 1314062500 = 53463^2 + 36250^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172354869 - 27 = 4172354741 is a prime.

It is a super-2 number, since 2×41723548692 = 34817090305736014322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4172354819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086177434 + 2086177435.

It is an arithmetic number, because the mean of its divisors is an integer number (2086177435).

Almost surely, 24172354869 is an apocalyptic number.

It is an amenable number.

4172354869 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172354869 is an equidigital number, since it uses as much as digits as its factorization.

4172354869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 4172354869 is about 64593.7680353144. The cubic root of 4172354869 is about 1609.8808945749.

The spelling of 4172354869 in words is "four billion, one hundred seventy-two million, three hundred fifty-four thousand, eight hundred sixty-nine".