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80620386 = 23721197257
BaseRepresentation
bin1001100111000…
…10101101100010
312121200221101020
410303202231202
5131114323021
611555550310
71666155600
oct463425542
9177627336
1080620386
1141565320
1222bbb396
1313919892
14a9c8870
1571277c6
hex4ce2b62

80620386 has 96 divisors (see below), whose sum is σ = 207531072. Its totient is φ = 20643840.

The previous prime is 80620343. The next prime is 80620453. The reversal of 80620386 is 68302608.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 313570 + ... + 313826.

It is an arithmetic number, because the mean of its divisors is an integer number (2161782).

Almost surely, 280620386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80620386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103765536).

80620386 is an abundant number, since it is smaller than the sum of its proper divisors (126910686).

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

80620386 is a wasteful number, since it uses less digits than its factorization.

80620386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 80620386 is about 8978.8855655922. The cubic root of 80620386 is about 431.9978887928.

The spelling of 80620386 in words is "eighty million, six hundred twenty thousand, three hundred eighty-six".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 49 66 77 97 98 147 154 194 231 257 291 294 462 514 539 582 679 771 1067 1078 1358 1542 1617 1799 2037 2134 2827 3201 3234 3598 4074 4753 5397 5654 6402 7469 8481 9506 10794 12593 14259 14938 16962 19789 22407 24929 25186 28518 37779 39578 44814 49858 52283 59367 74787 75558 104566 118734 138523 149574 156849 174503 274219 277046 313698 349006 415569 523509 548438 822657 831138 1047018 1221521 1645314 1919533 2443042 3664563 3839066 5758599 7329126 11517198 13436731 26873462 40310193 80620386