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61061006 = 230530503
BaseRepresentation
bin1110100011101…
…1011110001110
311020220012221202
43220323132032
5111112423011
610020425502
71341003266
oct350733616
9136805852
1061061006
1131516046
1218548292
13c85bb96
1481767a6
15556223b
hex3a3b78e

61061006 has 4 divisors (see below), whose sum is σ = 91591512. Its totient is φ = 30530502.

The previous prime is 61060997. The next prime is 61061009. The reversal of 61061006 is 60016016.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15265250 + ... + 15265253.

It is an arithmetic number, because the mean of its divisors is an integer number (22897878).

Almost surely, 261061006 is an apocalyptic number.

61061006 is a deficient number, since it is larger than the sum of its proper divisors (30530506).

61061006 is a wasteful number, since it uses less digits than its factorization.

61061006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30530505.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 61061006 is about 7814.1542088700. The cubic root of 61061006 is about 393.7809040664.

It can be divided in two parts, 610 and 61006, that added together give a palindrome (61616).

The spelling of 61061006 in words is "sixty-one million, sixty-one thousand, six".

Divisors: 1 2 30530503 61061006