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71601480 = 233251031931
BaseRepresentation
bin1000100010010…
…00110101001000
311222201201202200
410101020311020
5121312221410
611034400200
71526413446
oct421106510
9158651680
1071601480
1137465285
121bb90060
1311aac752
14971bb96
1564453c0
hex4448d48

71601480 has 96 divisors (see below), whose sum is σ = 235085760. Its totient is φ = 18898560.

The previous prime is 71601451. The next prime is 71601529. The reversal of 71601480 is 8410617.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36115 + ... + 38045.

It is an arithmetic number, because the mean of its divisors is an integer number (2448810).

Almost surely, 271601480 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 71601480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117542880).

71601480 is an abundant number, since it is smaller than the sum of its proper divisors (163484280).

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

71601480 is a wasteful number, since it uses less digits than its factorization.

71601480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 71601480 is about 8461.7657731705. The cubic root of 71601480 is about 415.2477931775.

The spelling of 71601480 in words is "seventy-one million, six hundred one thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 103 120 180 206 309 360 412 515 618 824 927 1030 1236 1545 1854 1931 2060 2472 3090 3708 3862 4120 4635 5793 6180 7416 7724 9270 9655 11586 12360 15448 17379 18540 19310 23172 28965 34758 37080 38620 46344 57930 69516 77240 86895 115860 139032 173790 198893 231720 347580 397786 596679 695160 795572 994465 1193358 1591144 1790037 1988930 2386716 2983395 3580074 3977860 4773432 5966790 7160148 7955720 8950185 11933580 14320296 17900370 23867160 35800740 71601480