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74414213 = 165744909
BaseRepresentation
bin1000110111101…
…11100010000101
312012000122002222
410123313202011
5123022223323
611214542125
71562340026
oct433674205
9165018088
1074414213
1139006555
1220b07945
1312555aa3
149c50c4d
1567ed9c8
hex46f7885

74414213 has 4 divisors (see below), whose sum is σ = 74460780. Its totient is φ = 74367648.

The previous prime is 74414201. The next prime is 74414297. The reversal of 74414213 is 31241447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31241447 = 151206897.

It can be written as a sum of positive squares in 2 ways, for example, as 17833729 + 56580484 = 4223^2 + 7522^2 .

It is a cyclic number.

It is not a de Polignac number, because 74414213 - 26 = 74414149 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 (74614213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20798 + ... + 24111.

It is an arithmetic number, because the mean of its divisors is an integer number (18615195).

Almost surely, 274414213 is an apocalyptic number.

It is an amenable number.

74414213 is a deficient number, since it is larger than the sum of its proper divisors (46567).

74414213 is a wasteful number, since it uses less digits than its factorization.

74414213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46566.

The product of its digits is 2688, while the sum is 26.

The square root of 74414213 is about 8626.3673119106. The cubic root of 74414213 is about 420.6155241697.

The spelling of 74414213 in words is "seventy-four million, four hundred fourteen thousand, two hundred thirteen".

Divisors: 1 1657 44909 74414213