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102434943 = 31331193439
BaseRepresentation
bin1100001101100…
…00100001111111
321010202020022210
412012300201333
5202210404233
614055311503
72352453102
oct606604177
9233666283
10102434943
1152904986
122a37b593
13182b6bc0
14d866739
158ed6163
hex61b087f

102434943 has 32 divisors (see below), whose sum is σ = 152965120. Its totient is φ = 60549120.

The previous prime is 102434929. The next prime is 102434953. The reversal of 102434943 is 349434201.

It is not a de Polignac number, because 102434943 - 214 = 102418559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102434943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102434903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233118 + ... + 233556.

It is an arithmetic number, because the mean of its divisors is an integer number (4780160).

Almost surely, 2102434943 is an apocalyptic number.

102434943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102434943 is a deficient number, since it is larger than the sum of its proper divisors (50530177).

102434943 is a wasteful number, since it uses less digits than its factorization.

102434943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 102434943 is about 10121.0149194634. The cubic root of 102434943 is about 467.8960476620.

The spelling of 102434943 in words is "one hundred two million, four hundred thirty-four thousand, nine hundred forty-three".

Divisors: 1 3 13 31 39 93 193 403 439 579 1209 1317 2509 5707 5983 7527 13609 17121 17949 40827 77779 84727 176917 233337 254181 530751 1101451 2626537 3304353 7879611 34144981 102434943