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74305230 = 235103139173
BaseRepresentation
bin1000110110111…
…00111011001110
312011211002121120
410123130323032
5123010231410
611212341410
71561404216
oct433347316
9164732546
1074305230
1138a4168a
1220a74866
13125182bc
149c23246
1567cb570
hex46dcece

74305230 has 64 divisors (see below), whose sum is σ = 182407680. Its totient is φ = 19368576.

The previous prime is 74305223. The next prime is 74305271. The reversal of 74305230 is 3250347.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 74305230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429424 + ... + 429596.

It is an arithmetic number, because the mean of its divisors is an integer number (2850120).

Almost surely, 274305230 is an apocalyptic number.

74305230 is an abundant number, since it is smaller than the sum of its proper divisors (108102450).

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

74305230 is a wasteful number, since it uses less digits than its factorization.

74305230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 74305230 is about 8620.0481437171. The cubic root of 74305230 is about 420.4100869901.

Adding to 74305230 its reverse (3250347), we get a palindrome (77555577).

The spelling of 74305230 in words is "seventy-four million, three hundred five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 103 139 173 206 278 309 346 417 515 519 618 695 834 865 1030 1038 1390 1545 1730 2085 2595 3090 4170 5190 14317 17819 24047 28634 35638 42951 48094 53457 71585 72141 85902 89095 106914 120235 143170 144282 178190 214755 240470 267285 360705 429510 534570 721410 2476841 4953682 7430523 12384205 14861046 24768410 37152615 74305230