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102144070 = 25731103457
BaseRepresentation
bin1100001011010…
…01100001000110
321010012110022201
412011221201012
5202122102240
614045145114
72350132060
oct605514106
9233173281
10102144070
1152726396
122a25b19a
13182146a2
14d7cc730
158e79d9a
hex6169846

102144070 has 64 divisors (see below), whose sum is σ = 219488256. Its totient is φ = 33488640.

The previous prime is 102144037. The next prime is 102144083. The reversal of 102144070 is 70441201.

It is a super-2 number, since 2×1021440702 = 20866822072329800, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 223282 + ... + 223738.

It is an arithmetic number, because the mean of its divisors is an integer number (3429504).

Almost surely, 2102144070 is an apocalyptic number.

102144070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102144070 is an abundant number, since it is smaller than the sum of its proper divisors (117344186).

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

102144070 is a wasteful number, since it uses less digits than its factorization.

102144070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 102144070 is about 10106.6349493786. The cubic root of 102144070 is about 467.4527505223.

Adding to 102144070 its reverse (70441201), we get a palindrome (172585271).

The spelling of 102144070 in words is "one hundred two million, one hundred forty-four thousand, seventy".

Divisors: 1 2 5 7 10 14 31 35 62 70 103 155 206 217 310 434 457 515 721 914 1030 1085 1442 2170 2285 3193 3199 3605 4570 6386 6398 7210 14167 15965 15995 22351 28334 31930 31990 44702 47071 70835 94142 99169 111755 141670 198338 223510 235355 329497 470710 495845 658994 991690 1459201 1647485 2918402 3294970 7296005 10214407 14592010 20428814 51072035 102144070