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80475437157 = 326825145719
BaseRepresentation
bin100101011110010110…
…1011011100001100101
321200201110201210011120
41022330231123201211
52304303202442112
6100545255524153
75546153633523
oct1127455334145
9250643653146
1080475437157
1131147317055
121371b089659
13778679998b
143c75d79313
1521600d3e8c
hex12bcb5b865

80475437157 has 4 divisors (see below), whose sum is σ = 107300582880. Its totient is φ = 53650291436.

The previous prime is 80475437143. The next prime is 80475437171. The reversal of 80475437157 is 75173457408.

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 an interprime number because it is at equal distance from previous prime (80475437143) and next prime (80475437171).

It is a cyclic number.

It is not a de Polignac number, because 80475437157 - 210 = 80475436133 is a prime.

It is a super-2 number, since 2×804754371572 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80475437197) 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, 13412572857 + ... + 13412572862.

It is an arithmetic number, because the mean of its divisors is an integer number (26825145720).

Almost surely, 280475437157 is an apocalyptic number.

It is an amenable number.

80475437157 is a deficient number, since it is larger than the sum of its proper divisors (26825145723).

80475437157 is a wasteful number, since it uses less digits than its factorization.

80475437157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26825145722.

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 80475437157 in words is "eighty billion, four hundred seventy-five million, four hundred thirty-seven thousand, one hundred fifty-seven".

Divisors: 1 3 26825145719 80475437157