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102061003261 = 7611193200351
BaseRepresentation
bin101111100001101001…
…1110101000111111101
3100202102210210011012211
41133003103311013331
53133010104101021
6114515225300421
710242111133240
oct1370323650775
9322383704184
10102061003261
113a313859388
1217944034711
1398167c55b9
144d22a79257
1529c514c3e1
hex17c34f51fd

102061003261 has 16 divisors (see below), whose sum is σ = 118653262848. Its totient is φ = 85974192000.

The previous prime is 102061003223. The next prime is 102061003279. The reversal of 102061003261 is 162300160201.

It is a cyclic number.

It is not a de Polignac number, because 102061003261 - 215 = 102060970493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102061003861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409236 + ... + 609586.

It is an arithmetic number, because the mean of its divisors is an integer number (7415828928).

Almost surely, 2102061003261 is an apocalyptic number.

It is an amenable number.

102061003261 is a deficient number, since it is larger than the sum of its proper divisors (16592259587).

102061003261 is a wasteful number, since it uses less digits than its factorization.

102061003261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201612.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 102061003261 its reverse (162300160201), we get a palindrome (264361163462).

The spelling of 102061003261 in words is "one hundred two billion, sixty-one million, three thousand, two hundred sixty-one".

Divisors: 1 7 61 427 1193 8351 72773 200351 509411 1402457 12221411 85549877 239018743 1673131201 14580143323 102061003261