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80452680 = 23357118707
BaseRepresentation
bin1001100101110…
…01110001001000
312121101102022220
410302321301020
5131043441210
611552214040
71664556630
oct462716110
9177342286
1080452680
1141460320
1222b3a320
131388b449
14a9836c0
1570e2c70
hex4cb9c48

80452680 has 128 divisors (see below), whose sum is σ = 300948480. Its totient is φ = 16715520.

The previous prime is 80452667. The next prime is 80452693. The reversal of 80452680 is 8625408.

It is an interprime number because it is at equal distance from previous prime (80452667) and next prime (80452693).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 4887 + ... + 13593.

It is an arithmetic number, because the mean of its divisors is an integer number (2351160).

Almost surely, 280452680 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 80452680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150474240).

80452680 is an abundant number, since it is smaller than the sum of its proper divisors (220495800).

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

80452680 is a wasteful number, since it uses less digits than its factorization.

80452680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739 (or 8735 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 80452680 is about 8969.5417943170. The cubic root of 80452680 is about 431.6981344528.

The spelling of 80452680 in words is "eighty million, four hundred fifty-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 11 12 14 15 20 21 22 24 28 30 33 35 40 42 44 55 56 60 66 70 77 84 88 105 110 120 132 140 154 165 168 210 220 231 264 280 308 330 385 420 440 462 616 660 770 840 924 1155 1320 1540 1848 2310 3080 4620 8707 9240 17414 26121 34828 43535 52242 60949 69656 87070 95777 104484 121898 130605 174140 182847 191554 208968 243796 261210 287331 304745 348280 365694 383108 478885 487592 522420 574662 609490 670439 731388 766216 914235 957770 1044840 1149324 1218980 1340878 1436655 1462776 1828470 1915540 2011317 2298648 2437960 2681756 2873310 3352195 3656940 3831080 4022634 5363512 5746620 6704390 7313880 8045268 10056585 11493240 13408780 16090536 20113170 26817560 40226340 80452680