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164427553 = 1749119699
BaseRepresentation
bin10011100110011…
…11011100100001
3102110101210012101
421303033130201
5314043140203
624152130401
74034416423
oct1163173441
9373353171
10164427553
11848a6944
1247096a01
13280b0b14
1417ba2813
15e67e41d
hex9ccf721

164427553 has 8 divisors (see below), whose sum is σ = 174463200. Its totient is φ = 154432320.

The previous prime is 164427547. The next prime is 164427559. The reversal of 164427553 is 355724461.

It is an interprime number because it is at equal distance from previous prime (164427547) and next prime (164427559).

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 164427553 - 213 = 164419361 is a prime.

It is a super-3 number, since 3×1644275533 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164427559) 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, 1503 + ... + 18196.

It is an arithmetic number, because the mean of its divisors is an integer number (21807900).

Almost surely, 2164427553 is an apocalyptic number.

It is an amenable number.

164427553 is a deficient number, since it is larger than the sum of its proper divisors (10035647).

164427553 is a wasteful number, since it uses less digits than its factorization.

164427553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20207.

The product of its digits is 100800, while the sum is 37.

The square root of 164427553 is about 12822.9307492476. The cubic root of 164427553 is about 547.8456251271.

The spelling of 164427553 in words is "one hundred sixty-four million, four hundred twenty-seven thousand, five hundred fifty-three".

Divisors: 1 17 491 8347 19699 334883 9672209 164427553