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102144952 = 23713243251
BaseRepresentation
bin1100001011010…
…01101110111000
321010012111112101
412011221232320
5202122114302
614045153144
72350134460
oct605515670
9233174471
10102144952
1152727018
122a25b7b4
1318214c00
14d7ccba0
158e7a287
hex6169bb8

102144952 has 96 divisors (see below), whose sum is σ = 243492480. Its totient is φ = 39312000.

The previous prime is 102144943. The next prime is 102144953. The reversal of 102144952 is 259441201.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 102144952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102144953) 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, 406827 + ... + 407077.

It is an arithmetic number, because the mean of its divisors is an integer number (2536380).

Almost surely, 2102144952 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 102144952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121746240).

102144952 is an abundant number, since it is smaller than the sum of its proper divisors (141347528).

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

102144952 is a wasteful number, since it uses less digits than its factorization.

102144952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 102144952 is about 10106.6785839859. The cubic root of 102144952 is about 467.4540959818.

The spelling of 102144952 in words is "one hundred two million, one hundred forty-four thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 13 14 26 28 43 52 56 86 91 104 169 172 182 251 301 338 344 364 502 559 602 676 728 1004 1118 1183 1204 1352 1757 2008 2236 2366 2408 3263 3514 3913 4472 4732 6526 7028 7267 7826 9464 10793 13052 14056 14534 15652 21586 22841 26104 29068 31304 42419 43172 45682 50869 58136 75551 84838 86344 91364 101738 140309 151102 169676 182728 203476 280618 296933 302204 339352 406952 561236 593866 604408 982163 1122472 1187732 1824017 1964326 2375464 3648034 3928652 7296068 7857304 12768119 14592136 25536238 51072476 102144952