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61206704 = 24132973139
BaseRepresentation
bin1110100101111…
…1000010110000
311021011121210222
43221133002300
5111132103304
610023512212
71342151126
oct351370260
9137147728
1061206704
1131605559
12185b8668
13c8b02b0
1481b3916
1555904be
hex3a5f0b0

61206704 has 80 divisors (see below), whose sum is σ = 134887200. Its totient is φ = 26707968.

The previous prime is 61206701. The next prime is 61206713. The reversal of 61206704 is 40760216.

61206704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×612067042 = 7492521229087232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (61206701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440267 + ... + 440405.

It is an arithmetic number, because the mean of its divisors is an integer number (1686090).

Almost surely, 261206704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61206704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67443600).

61206704 is an abundant number, since it is smaller than the sum of its proper divisors (73680496).

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

61206704 is a wasteful number, since it uses less digits than its factorization.

61206704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 61206704 is about 7823.4713522835. The cubic root of 61206704 is about 394.0938562081.

The spelling of 61206704 in words is "sixty-one million, two hundred six thousand, seven hundred four".

Divisors: 1 2 4 8 13 16 26 29 52 58 73 104 116 139 146 208 232 278 292 377 464 556 584 754 949 1112 1168 1508 1807 1898 2117 2224 3016 3614 3796 4031 4234 6032 7228 7592 8062 8468 10147 14456 15184 16124 16936 20294 27521 28912 32248 33872 40588 52403 55042 64496 81176 104806 110084 131911 162352 209612 220168 263822 294263 419224 440336 527644 588526 838448 1055288 1177052 2110576 2354104 3825419 4708208 7650838 15301676 30603352 61206704