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102412152 = 23323721039
BaseRepresentation
bin1100001101010…
…10111101111000
321010201002001200
412012222331320
5202204142102
614055014200
72352326463
oct606527570
9233632050
10102412152
1152899847
122a36a360
13182a970b
14d85c2da
158ece51c
hex61aaf78

102412152 has 72 divisors (see below), whose sum is σ = 285339600. Its totient is φ = 33182784.

The previous prime is 102412139. The next prime is 102412159. The reversal of 102412152 is 251214201.

102412152 is a `hidden beast` number, since 102 + 412 + 152 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1024121522 = 20976497754542208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102412159) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 98049 + ... + 99087.

It is an arithmetic number, because the mean of its divisors is an integer number (3963050).

Almost surely, 2102412152 is an apocalyptic number.

102412152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102412152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142669800).

102412152 is an abundant number, since it is smaller than the sum of its proper divisors (182927448).

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

102412152 is a wasteful number, since it uses less digits than its factorization.

102412152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 102412152 is about 10119.8889321968. Note that the first 3 decimals coincide. The cubic root of 102412152 is about 467.8613439776.

Adding to 102412152 its reverse (251214201), we get a palindrome (353626353).

The spelling of 102412152 in words is "one hundred two million, four hundred twelve thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 37 72 74 111 148 222 296 333 444 666 888 1039 1332 1369 2078 2664 2738 3117 4107 4156 5476 6234 8214 8312 9351 10952 12321 12468 16428 18702 24642 24936 32856 37404 38443 49284 74808 76886 98568 115329 153772 230658 307544 345987 461316 691974 922632 1383948 1422391 2767896 2844782 4267173 5689564 8534346 11379128 12801519 17068692 25603038 34137384 51206076 102412152