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76448142 = 23237791453
BaseRepresentation
bin1001000111010…
…00000110001110
312022211222010200
410203220012032
5124032320032
611330314330
71615540611
oct443500616
9168758120
1076448142
113a175691
12217289a6
1312ab87b4
14a220178
156aa147c
hex48e818e

76448142 has 48 divisors (see below), whose sum is σ = 172386240. Its totient is φ = 24463296.

The previous prime is 76448137. The next prime is 76448143. The reversal of 76448142 is 24184467.

76448142 is a `hidden beast` number, since 7 + 644 + 8 + 1 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 76448097 and 76448106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76448143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51888 + ... + 53340.

It is an arithmetic number, because the mean of its divisors is an integer number (3591380).

Almost surely, 276448142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76448142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86193120).

76448142 is an abundant number, since it is smaller than the sum of its proper divisors (95938098).

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

76448142 is a wasteful number, since it uses less digits than its factorization.

76448142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577 (or 1574 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 76448142 is about 8743.4628151551. The cubic root of 76448142 is about 424.4132933157.

The spelling of 76448142 in words is "seventy-six million, four hundred forty-eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 37 74 79 111 158 222 237 333 474 666 711 1422 1453 2906 2923 4359 5846 8718 8769 13077 17538 26154 26307 52614 53761 107522 114787 161283 229574 322566 344361 483849 688722 967698 1033083 2066166 4247119 8494238 12741357 25482714 38224071 76448142