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48181380 = 223513223277
BaseRepresentation
bin1011011111001…
…1000010000100
310100122212102120
42313303002010
544313301010
64440405540
71123351332
oct267630204
9110585376
1048181380
1125219425
12141768b0
139c9c6c0
146582b52
15436ae70
hex2df3084

48181380 has 96 divisors (see below), whose sum is σ = 146463744. Its totient is φ = 11764224.

The previous prime is 48181369. The next prime is 48181391. The reversal of 48181380 is 8318184.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (48181369) and next prime (48181391).

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, 173802 + ... + 174078.

It is an arithmetic number, because the mean of its divisors is an integer number (1525664).

Almost surely, 248181380 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 48181380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73231872).

48181380 is an abundant number, since it is smaller than the sum of its proper divisors (98282364).

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

48181380 is a wasteful number, since it uses less digits than its factorization.

48181380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 48181380 is about 6941.2808616278. The cubic root of 48181380 is about 363.8813061459.

The spelling of 48181380 in words is "forty-eight million, one hundred eighty-one thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 223 260 277 390 446 554 669 780 831 892 1108 1115 1338 1385 1662 2230 2676 2770 2899 3324 3345 3601 4155 4460 5540 5798 6690 7202 8310 8697 10803 11596 13380 14404 14495 16620 17394 18005 21606 28990 34788 36010 43212 43485 54015 57980 61771 72020 86970 108030 123542 173940 185313 216060 247084 308855 370626 617710 741252 803023 926565 1235420 1606046 1853130 2409069 3212092 3706260 4015115 4818138 8030230 9636276 12045345 16060460 24090690 48181380