Search a number
-
+
74230210 = 2553140057
BaseRepresentation
bin1000110110010…
…10100111000010
312011200021201001
410123022213002
5123000331320
611211002214
71560642415
oct433124702
9164607631
1074230210
11389a028a
1220a3936a
13124c0102
149c03b7c
1567b420a
hex46ca9c2

74230210 has 16 divisors (see below), whose sum is σ = 136136376. Its totient is φ = 29131648.

The previous prime is 74230187. The next prime is 74230231. The reversal of 74230210 is 1203247.

It can be written as a sum of positive squares in 4 ways, for example, as 49519369 + 24710841 = 7037^2 + 4971^2 .

It is a super-4 number, since 4×742302104 (a number of 33 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69499 + ... + 70558.

Almost surely, 274230210 is an apocalyptic number.

74230210 is a deficient number, since it is larger than the sum of its proper divisors (61906166).

74230210 is a wasteful number, since it uses less digits than its factorization.

74230210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140117.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 74230210 is about 8615.6955610096. The cubic root of 74230210 is about 420.2685546248.

Adding to 74230210 its reverse (1203247), we get a palindrome (75433457).

The spelling of 74230210 in words is "seventy-four million, two hundred thirty thousand, two hundred ten".

Divisors: 1 2 5 10 53 106 265 530 140057 280114 700285 1400570 7423021 14846042 37115105 74230210