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102030432 = 25371491019
BaseRepresentation
bin1100001010011…
…01110001100000
321002222200102220
412011031301200
5202104433212
614042511040
72346146550
oct605156140
9232880386
10102030432
1152658a79
122a205480
13181a4a4a
14d79d160
158e5638c
hex614dc60

102030432 has 96 divisors (see below), whose sum is σ = 308448000. Its totient is φ = 28927488.

The previous prime is 102030407. The next prime is 102030449. The reversal of 102030432 is 234030201.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99619 + ... + 100637.

It is an arithmetic number, because the mean of its divisors is an integer number (3213000).

Almost surely, 2102030432 is an apocalyptic number.

102030432 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 102030432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154224000).

102030432 is an abundant number, since it is smaller than the sum of its proper divisors (206417568).

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

102030432 is a wasteful number, since it uses less digits than its factorization.

102030432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 102030432 is about 10101.0114345050. The cubic root of 102030432 is about 467.2793349824.

Adding to 102030432 its reverse (234030201), we get a palindrome (336060633).

The spelling of 102030432 in words is "one hundred two million, thirty thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 149 168 224 298 336 447 596 672 894 1019 1043 1192 1788 2038 2086 2384 3057 3129 3576 4076 4172 4768 6114 6258 7133 7152 8152 8344 12228 12516 14266 14304 16304 16688 21399 24456 25032 28532 32608 33376 42798 48912 50064 57064 85596 97824 100128 114128 151831 171192 228256 303662 342384 455493 607324 684768 910986 1062817 1214648 1821972 2125634 2429296 3188451 3643944 4251268 4858592 6376902 7287888 8502536 12753804 14575776 17005072 25507608 34010144 51015216 102030432