Search a number
-
+
87965472 = 2537223587
BaseRepresentation
bin1010011111000…
…11111100100000
320010112002221110
411033203330200
5140004343342
612421223320
72115460050
oct517437440
9203462843
1087965472
1145721841
1225561b40
13152bbb9a
14b97b560
157ac8c9c
hex53e3f20

87965472 has 96 divisors (see below), whose sum is σ = 265531392. Its totient is φ = 24977664.

The previous prime is 87965467. The next prime is 87965489. The reversal of 87965472 is 27456978.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149563 + ... + 150149.

It is an arithmetic number, because the mean of its divisors is an integer number (2765952).

Almost surely, 287965472 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 87965472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132765696).

87965472 is an abundant number, since it is smaller than the sum of its proper divisors (177565920).

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

87965472 is a wasteful number, since it uses less digits than its factorization.

87965472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 822 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 87965472 is about 9378.9909905064. The cubic root of 87965472 is about 444.7378365761.

The spelling of 87965472 in words is "eighty-seven million, nine hundred sixty-five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 223 224 336 446 587 669 672 892 1174 1338 1561 1761 1784 2348 2676 3122 3522 3568 4109 4683 4696 5352 6244 7044 7136 8218 9366 9392 10704 12327 12488 14088 16436 18732 18784 21408 24654 24976 28176 32872 37464 49308 49952 56352 65744 74928 98616 130901 131488 149856 197232 261802 392703 394464 523604 785406 916307 1047208 1570812 1832614 2094416 2748921 3141624 3665228 4188832 5497842 6283248 7330456 10995684 12566496 14660912 21991368 29321824 43982736 87965472