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61016263 = 71123131263
BaseRepresentation
bin1110100011000…
…0100011000111
311020210221120121
43220300203013
5111110010023
610015442411
71340425660
oct350604307
9136727517
1061016263
1131495470
1218526407
13c8446c9
148164367
155553d5d
hex3a308c7

61016263 has 32 divisors (see below), whose sum is σ = 80289792. Its totient is φ = 44959200.

The previous prime is 61016257. The next prime is 61016299. The reversal of 61016263 is 36261016.

It is not a de Polignac number, because 61016263 - 225 = 27461831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61016233) 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, 231870 + ... + 232132.

It is an arithmetic number, because the mean of its divisors is an integer number (2509056).

Almost surely, 261016263 is an apocalyptic number.

61016263 is a deficient number, since it is larger than the sum of its proper divisors (19273529).

61016263 is a wasteful number, since it uses less digits than its factorization.

61016263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 61016263 is about 7811.2907384119. The cubic root of 61016263 is about 393.6846984005.

Adding to 61016263 its reverse (36261016), we get a palindrome (97277279).

The spelling of 61016263 in words is "sixty-one million, sixteen thousand, two hundred sixty-three".

Divisors: 1 7 11 23 77 131 161 253 263 917 1441 1771 1841 2893 3013 6049 10087 20251 21091 33143 34453 42343 66539 232001 241171 378983 465773 792419 2652881 5546933 8716609 61016263