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55302351 = 3131418009
BaseRepresentation
bin1101001011110…
…1100011001111
310212001122120020
43102331203033
5103124133401
65253153223
71241030226
oct322754317
9125048506
1055302351
1129242525
121662b813
13b5c39b0
1474b7cbd
154cc5d36
hex34bd8cf

55302351 has 8 divisors (see below), whose sum is σ = 79408560. Its totient is φ = 34032192.

The previous prime is 55302347. The next prime is 55302371. The reversal of 55302351 is 15320355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55302351 - 22 = 55302347 is a prime.

It is a super-2 number, since 2×553023512 = 6116700052254402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55302371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708966 + ... + 709043.

It is an arithmetic number, because the mean of its divisors is an integer number (9926070).

Almost surely, 255302351 is an apocalyptic number.

55302351 is a deficient number, since it is larger than the sum of its proper divisors (24106209).

55302351 is a wasteful number, since it uses less digits than its factorization.

55302351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418025.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55302351 is about 7436.5550492147. Note that the first 3 decimals coincide. The cubic root of 55302351 is about 380.9908375391.

The spelling of 55302351 in words is "fifty-five million, three hundred two thousand, three hundred fifty-one".

Divisors: 1 3 13 39 1418009 4254027 18434117 55302351