Search a number
-
+
74906804 = 2276739929
BaseRepresentation
bin1000111011011…
…11110010110100
312012221122211002
410131233302310
5123134004204
611233302432
71566461120
oct435576264
9165848732
1074906804
1139312655
1221104a18
131269906b
149d3c580
15689991e
hex476fcb4

74906804 has 24 divisors (see below), whose sum is σ = 152053440. Its totient is φ = 31622976.

The previous prime is 74906803. The next prime is 74906807. The reversal of 74906804 is 40860947.

It is a happy number.

It is a super-2 number, since 2×749068042 = 11222058570988832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74906801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18089 + ... + 21840.

It is an arithmetic number, because the mean of its divisors is an integer number (6335560).

Almost surely, 274906804 is an apocalyptic number.

It is an amenable number.

74906804 is an abundant number, since it is smaller than the sum of its proper divisors (77146636).

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

74906804 is a wasteful number, since it uses less digits than its factorization.

74906804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40007 (or 40005 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 74906804 is about 8654.8716917121. The cubic root of 74906804 is about 421.5415834697.

The spelling of 74906804 in words is "seventy-four million, nine hundred six thousand, eight hundred four".

Divisors: 1 2 4 7 14 28 67 134 268 469 938 1876 39929 79858 159716 279503 559006 1118012 2675243 5350486 10700972 18726701 37453402 74906804