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54206157 = 371254489
BaseRepresentation
bin1100111011000…
…1111011001101
310202222221212110
43032301323031
5102334044112
65213454233
71225513305
oct316617315
9122887773
1054206157
1128663985
12161a1379
13b2cba65
1472b0605
154b5b13c
hex33b1ecd

54206157 has 8 divisors (see below), whose sum is σ = 73293120. Its totient is φ = 35628320.

The previous prime is 54206153. The next prime is 54206161. The reversal of 54206157 is 75160245.

It is an interprime number because it is at equal distance from previous prime (54206153) and next prime (54206161).

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

It is a cyclic number.

It is not a de Polignac number, because 54206157 - 22 = 54206153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54206153) 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, 127032 + ... + 127457.

It is an arithmetic number, because the mean of its divisors is an integer number (9161640).

Almost surely, 254206157 is an apocalyptic number.

It is an amenable number.

54206157 is a deficient number, since it is larger than the sum of its proper divisors (19086963).

54206157 is a wasteful number, since it uses less digits than its factorization.

54206157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254563.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 54206157 is about 7362.4830729856. The cubic root of 54206157 is about 378.4567070107.

The spelling of 54206157 in words is "fifty-four million, two hundred six thousand, one hundred fifty-seven".

Divisors: 1 3 71 213 254489 763467 18068719 54206157