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87375541 = 117943231
BaseRepresentation
bin1010011010100…
…11111010110101
320002102010201011
411031103322311
5134332004131
612400432221
72110452121
oct515237265
9202363634
1087375541
11453595a0
1225318671
1315143506
14b866581
157a0e0b1
hex5353eb5

87375541 has 4 divisors (see below), whose sum is σ = 95318784. Its totient is φ = 79432300.

The previous prime is 87375523. The next prime is 87375581. The reversal of 87375541 is 14557378.

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 a de Polignac number, because none of the positive numbers 2k-87375541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87375494 and 87375503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87375581) 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, 3971605 + ... + 3971626.

It is an arithmetic number, because the mean of its divisors is an integer number (23829696).

Almost surely, 287375541 is an apocalyptic number.

It is an amenable number.

87375541 is a deficient number, since it is larger than the sum of its proper divisors (7943243).

87375541 is a wasteful number, since it uses less digits than its factorization.

87375541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943242.

The product of its digits is 117600, while the sum is 40.

The square root of 87375541 is about 9347.4884862192. The cubic root of 87375541 is about 443.7414102417.

The spelling of 87375541 in words is "eighty-seven million, three hundred seventy-five thousand, five hundred forty-one".

Divisors: 1 11 7943231 87375541