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82669948 = 2266131267
BaseRepresentation
bin1001110110101…
…11000101111100
312202120001211221
410323113011330
5132130414243
612111523124
72022453154
oct473270574
9182501757
1082669948
1142735179
12238294a4
131418673a
14ad9d764
1573cebed
hex4ed717c

82669948 has 12 divisors (see below), whose sum is σ = 144895912. Its totient is φ = 41271120.

The previous prime is 82669927. The next prime is 82669949. The reversal of 82669948 is 84996628.

It is a junction number, because it is equal to n+sod(n) for n = 82669895 and 82669904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82669949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12990 + ... + 18277.

Almost surely, 282669948 is an apocalyptic number.

It is an amenable number.

82669948 is a deficient number, since it is larger than the sum of its proper divisors (62225964).

82669948 is a wasteful number, since it uses less digits than its factorization.

82669948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31932 (or 31930 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 82669948 is about 9092.3015788083. The cubic root of 82669948 is about 435.6281021950.

It can be divided in two parts, 8 and 2669948, that added together give a square (2669956 = 16342).

The spelling of 82669948 in words is "eighty-two million, six hundred sixty-nine thousand, nine hundred forty-eight".

Divisors: 1 2 4 661 1322 2644 31267 62534 125068 20667487 41334974 82669948