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5272936381 = 6778700543
BaseRepresentation
bin1001110100100101…
…01001111110111101
3111121110221220220001
410322102221332331
541244332431011
62231121154301
7244445135236
oct47222517675
914543856801
105272936381
112266487169
121031a8b991
136605720cb
1438042c08d
1520cdbb7c1
hex13a4a9fbd

5272936381 has 4 divisors (see below), whose sum is σ = 5351636992. Its totient is φ = 5194235772.

The previous prime is 5272936379. The next prime is 5272936387. The reversal of 5272936381 is 1836392725.

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 5272936381 - 21 = 5272936379 is a prime.

It is a super-2 number, since 2×52729363812 = 55607716156146754322, 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 (5272936387) 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, 39350205 + ... + 39350338.

It is an arithmetic number, because the mean of its divisors is an integer number (1337909248).

Almost surely, 25272936381 is an apocalyptic number.

It is an amenable number.

5272936381 is a deficient number, since it is larger than the sum of its proper divisors (78700611).

5272936381 is an equidigital number, since it uses as much as digits as its factorization.

5272936381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78700610.

The product of its digits is 544320, while the sum is 46.

The square root of 5272936381 is about 72614.9873028977. The cubic root of 5272936381 is about 1740.5406763195.

The spelling of 5272936381 in words is "five billion, two hundred seventy-two million, nine hundred thirty-six thousand, three hundred eighty-one".

Divisors: 1 67 78700543 5272936381