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252519904 = 25713175101
BaseRepresentation
bin11110000110100…
…10010111100000
3122121011100012001
433003102113200
51004121114104
641020213344
76154245430
oct1703222740
9577140161
10252519904
1111a5a4a3a
127069a254
1340415680
14257742c0
1517280aa4
hexf0d25e0

252519904 has 96 divisors (see below), whose sum is σ = 647994816. Its totient is φ = 94003200.

The previous prime is 252519901. The next prime is 252519913. The reversal of 252519904 is 409915252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252519901) 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 15 ways as a sum of consecutive naturals, for example, 46954 + ... + 52054.

It is an arithmetic number, because the mean of its divisors is an integer number (6749946).

Almost surely, 2252519904 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 252519904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323997408).

252519904 is an abundant number, since it is smaller than the sum of its proper divisors (395474912).

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

252519904 is a wasteful number, since it uses less digits than its factorization.

252519904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148 (or 5140 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 252519904 is about 15890.8748657838. The cubic root of 252519904 is about 632.0700397729.

The spelling of 252519904 in words is "two hundred fifty-two million, five hundred nineteen thousand, nine hundred four".

Divisors: 1 2 4 7 8 13 14 16 17 26 28 32 34 52 56 68 91 104 112 119 136 182 208 221 224 238 272 364 416 442 476 544 728 884 952 1456 1547 1768 1904 2912 3094 3536 3808 5101 6188 7072 10202 12376 20404 24752 35707 40808 49504 66313 71414 81616 86717 132626 142828 163232 173434 265252 285656 346868 464191 530504 571312 607019 693736 928382 1061008 1127321 1142624 1214038 1387472 1856764 2122016 2254642 2428076 2774944 3713528 4509284 4856152 7427056 7891247 9018568 9712304 14854112 15782494 18037136 19424608 31564988 36074272 63129976 126259952 252519904