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102241405 = 5779103359
BaseRepresentation
bin1100001100000…
…01010001111101
321010101101211201
412012001101331
5202133211110
614051215501
72351015620
oct606012175
9233341751
10102241405
1152792532
122a2a7591
1318249a96
14d815db7
158e98b3a
hex618147d

102241405 has 32 divisors (see below), whose sum is σ = 143769600. Its totient is φ = 68357952.

The previous prime is 102241393. The next prime is 102241409. The reversal of 102241405 is 504142201.

It is a cyclic number.

It is not a de Polignac number, because 102241405 - 29 = 102240893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102241409) 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, 284616 + ... + 284974.

It is an arithmetic number, because the mean of its divisors is an integer number (4492800).

Almost surely, 2102241405 is an apocalyptic number.

It is an amenable number.

102241405 is a deficient number, since it is larger than the sum of its proper divisors (41528195).

102241405 is a wasteful number, since it uses less digits than its factorization.

102241405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 102241405 is about 10111.4492037492. The cubic root of 102241405 is about 467.6011848813.

Adding to 102241405 its reverse (504142201), we get a palindrome (606383606).

The spelling of 102241405 in words is "one hundred two million, two hundred forty-one thousand, four hundred five".

Divisors: 1 5 7 35 79 103 359 395 515 553 721 1795 2513 2765 3605 8137 12565 28361 36977 40685 56959 141805 184885 198527 258839 284795 992635 1294195 2921183 14605915 20448281 102241405