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69303078040 = 2357599413207
BaseRepresentation
bin100000010001011001…
…0010000110010011000
320121212211222010200011
41000202302100302120
52113413041444130
651500513251304
75002252305130
oct1004262206230
9217784863604
1069303078040
1127433865309
1211521563b34
1366c5c452b1
1434d623dac0
151c0934a52a
hex1022c90c98

69303078040 has 64 divisors (see below), whose sum is σ = 178505856000. Its totient is φ = 23721330048.

The previous prime is 69303078029. The next prime is 69303078041. The reversal of 69303078040 is 4087030396.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 69303077984 and 69303078002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69303078041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38884 + ... + 374323.

It is an arithmetic number, because the mean of its divisors is an integer number (2789154000).

Almost surely, 269303078040 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 69303078040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89252928000).

69303078040 is an abundant number, since it is smaller than the sum of its proper divisors (109202777960).

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

69303078040 is a wasteful number, since it uses less digits than its factorization.

69303078040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413824 (or 413820 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 69303078040 in words is "sixty-nine billion, three hundred three million, seventy-eight thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 599 1198 2396 2995 4193 4792 5990 8386 11980 16772 20965 23960 33544 41930 83860 167720 413207 826414 1652828 2066035 2892449 3305656 4132070 5784898 8264140 11569796 14462245 16528280 23139592 28924490 57848980 115697960 247510993 495021986 990043972 1237554965 1732576951 1980087944 2475109930 3465153902 4950219860 6930307804 8662884755 9900439720 13860615608 17325769510 34651539020 69303078040