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52976490 = 2357347727
BaseRepresentation
bin1100101000010…
…1101101101010
310200200111002020
43022011231222
5102030221430
65131245310
71212202260
oct312055552
9120614066
1052976490
11279a4026
12158a9836
13ac8b148
147070430
1549b6b10
hex3285b6a

52976490 has 64 divisors (see below), whose sum is σ = 145926144. Its totient is φ = 12057408.

The previous prime is 52976477. The next prime is 52976491. The reversal of 52976490 is 9467925.

52976490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (52976491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72507 + ... + 73233.

It is an arithmetic number, because the mean of its divisors is an integer number (2280096).

Almost surely, 252976490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52976490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72963072).

52976490 is an abundant number, since it is smaller than the sum of its proper divisors (92949654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52976490 is a wasteful number, since it uses less digits than its factorization.

52976490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 52976490 is about 7278.4950367504. The cubic root of 52976490 is about 375.5730261523.

The spelling of 52976490 in words is "fifty-two million, nine hundred seventy-six thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 347 694 727 1041 1454 1735 2082 2181 2429 3470 3635 4362 4858 5089 5205 7270 7287 10178 10410 10905 12145 14574 15267 21810 24290 25445 30534 36435 50890 72870 76335 152670 252269 504538 756807 1261345 1513614 1765883 2522690 3531766 3784035 5297649 7568070 8829415 10595298 17658830 26488245 52976490