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75228480 = 263358707
BaseRepresentation
bin1000111101111…
…10010101000000
312020120000002000
410132332111000
5123224302410
611244224000
71602301005
oct436762500
9166500060
1075228480
11395122a8
122123b000
131277c5c2
149dc38ac
15690edc0
hex47be540

75228480 has 112 divisors (see below), whose sum is σ = 265419840. Its totient is φ = 20058624.

The previous prime is 75228443. The next prime is 75228493. The reversal of 75228480 is 8482257.

It is a happy number.

It is a super-2 number, since 2×752284802 = 11318648406220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4287 + ... + 12993.

It is an arithmetic number, because the mean of its divisors is an integer number (2369820).

Almost surely, 275228480 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 75228480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132709920).

75228480 is an abundant number, since it is smaller than the sum of its proper divisors (190191360).

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

75228480 is a wasteful number, since it uses less digits than its factorization.

75228480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8733 (or 8717 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 75228480 is about 8673.4353055753. The cubic root of 75228480 is about 422.1441374017.

The spelling of 75228480 in words is "seventy-five million, two hundred twenty-eight thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 135 144 160 180 192 216 240 270 288 320 360 432 480 540 576 720 864 960 1080 1440 1728 2160 2880 4320 8640 8707 17414 26121 34828 43535 52242 69656 78363 87070 104484 130605 139312 156726 174140 208968 235089 261210 278624 313452 348280 391815 417936 470178 522420 557248 626904 696560 783630 835872 940356 1044840 1175445 1253808 1393120 1567260 1671744 1880712 2089680 2350890 2507616 2786240 3134520 3761424 4179360 4701780 5015232 6269040 7522848 8358720 9403560 12538080 15045696 18807120 25076160 37614240 75228480