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32120497 = 171889441
BaseRepresentation
bin111101010000…
…1111010110001
32020102220001001
41322201322301
531210323442
63104242001
7540006523
oct172417261
966386031
1032120497
1117149672
12a910301
136868216
1443a1a13
152c472b7
hex1ea1eb1

32120497 has 4 divisors (see below), whose sum is σ = 34009956. Its totient is φ = 30231040.

The previous prime is 32120479. The next prime is 32120503. The reversal of 32120497 is 79402123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79402123 = 431846561.

It can be written as a sum of positive squares in 2 ways, for example, as 24049216 + 8071281 = 4904^2 + 2841^2 .

It is a cyclic number.

It is not a de Polignac number, because 32120497 - 27 = 32120369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32121497) 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, 944704 + ... + 944737.

It is an arithmetic number, because the mean of its divisors is an integer number (8502489).

Almost surely, 232120497 is an apocalyptic number.

It is an amenable number.

32120497 is a deficient number, since it is larger than the sum of its proper divisors (1889459).

32120497 is a wasteful number, since it uses less digits than its factorization.

32120497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889458.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 32120497 is about 5667.4947728251. The cubic root of 32120497 is about 317.8782051415.

The spelling of 32120497 in words is "thirty-two million, one hundred twenty thousand, four hundred ninety-seven".

Divisors: 1 17 1889441 32120497