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80453412 = 2235136367
BaseRepresentation
bin1001100101110…
…01111100100100
312121101110100000
410302321330210
5131044002122
611552221300
71664562024
oct462717444
9177343300
1080453412
1141460926
1222b3a830
131388b890
14a983a84
1570e30ac
hex4cb9f24

80453412 has 72 divisors (see below), whose sum is σ = 227159296. Its totient is φ = 24751008.

The previous prime is 80453411. The next prime is 80453413. The reversal of 80453412 is 21435408.

It is an interprime number because it is at equal distance from previous prime (80453411) and next prime (80453413).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80453411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9453 + ... + 15819.

Almost surely, 280453412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80453412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113579648).

80453412 is an abundant number, since it is smaller than the sum of its proper divisors (146705884).

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

80453412 is a wasteful number, since it uses less digits than its factorization.

80453412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399 (or 6385 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 80453412 is about 8969.5825989842. The cubic root of 80453412 is about 431.6994437196.

It can be divided in two parts, 804534 and 12, that added together give a triangular number (804546 = T1268).

The spelling of 80453412 in words is "eighty million, four hundred fifty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 81 108 117 156 162 234 243 324 351 468 486 702 972 1053 1404 2106 3159 4212 6318 6367 12636 12734 19101 25468 38202 57303 76404 82771 114606 165542 171909 229212 248313 331084 343818 496626 515727 687636 744939 993252 1031454 1489878 1547181 2062908 2234817 2979756 3094362 4469634 6188724 6704451 8939268 13408902 20113353 26817804 40226706 80453412