Search a number
-
+
69869052 = 223211533329
BaseRepresentation
bin1000010101000…
…01110111111100
311212110201022200
410022201313330
5120341302202
610533311500
71505606601
oct412416774
9155421280
1069869052
1136491720
121b495590
1311624046
1493ca6a8
156201e1c
hex42a1dfc

69869052 has 72 divisors (see below), whose sum is σ = 196363440. Its totient is φ = 20766720.

The previous prime is 69869017. The next prime is 69869053. The reversal of 69869052 is 25096896.

It is a junction number, because it is equal to n+sod(n) for n = 69868989 and 69869007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69869053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19324 + ... + 22652.

It is an arithmetic number, because the mean of its divisors is an integer number (2727270).

Almost surely, 269869052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69869052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98181720).

69869052 is an abundant number, since it is smaller than the sum of its proper divisors (126494388).

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

69869052 is a wasteful number, since it uses less digits than its factorization.

69869052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403 (or 3398 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 69869052 is about 8358.7709622887. The cubic root of 69869052 is about 411.8713819152.

The spelling of 69869052 in words is "sixty-nine million, eight hundred sixty-nine thousand, fifty-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 53 66 99 106 132 159 198 212 318 396 477 583 636 954 1166 1749 1908 2332 3329 3498 5247 6658 6996 9987 10494 13316 19974 20988 29961 36619 39948 59922 73238 109857 119844 146476 176437 219714 329571 352874 439428 529311 659142 705748 1058622 1318284 1587933 1940807 2117244 3175866 3881614 5822421 6351732 7763228 11644842 17467263 23289684 34934526 69869052