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69538384 = 2423233811
BaseRepresentation
bin1000010010100…
…01001001010000
311211211220201201
410021101021100
5120300212014
610522240544
71503031546
oct411211120
9154756651
1069538384
1136286243
121b356154
1311539696
149341d96
156188e74
hex4251250

69538384 has 40 divisors (see below), whose sum is σ = 141365952. Its totient is φ = 33073920.

The previous prime is 69538373. The next prime is 69538387. The reversal of 69538384 is 48383596.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69538387) 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, 85339 + ... + 86149.

Almost surely, 269538384 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 69538384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70682976).

69538384 is an abundant number, since it is smaller than the sum of its proper divisors (71827568).

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

69538384 is a wasteful number, since it uses less digits than its factorization.

69538384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1069 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 69538384 is about 8338.9678018326. The cubic root of 69538384 is about 411.2206021058.

The spelling of 69538384 in words is "sixty-nine million, five hundred thirty-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 23 46 92 184 233 368 466 811 932 1622 1864 3244 3728 5359 6488 10718 12976 18653 21436 37306 42872 74612 85744 149224 188963 298448 377926 755852 1511704 3023408 4346149 8692298 17384596 34769192 69538384