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70666050 = 235271331167
BaseRepresentation
bin1000011011001…
…00011101000010
311220222012121010
410031210131002
5121042303200
611002341350
71515436320
oct415443502
9156865533
1070666050
11369864a4
121b7ba856
1311842a40
149556d10
15630d150
hex4364742

70666050 has 192 divisors, whose sum is σ = 223985664. Its totient is φ = 14342400.

The previous prime is 70666049. The next prime is 70666061. The reversal of 70666050 is 5066607.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 70665999 and 70666017.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 423067 + ... + 423233.

It is an arithmetic number, because the mean of its divisors is an integer number (1166592).

Almost surely, 270666050 is an apocalyptic number.

70666050 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70666050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111992832).

70666050 is an abundant number, since it is smaller than the sum of its proper divisors (153319614).

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

70666050 is a wasteful number, since it uses less digits than its factorization.

70666050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 70666050 is about 8406.3101298965. The cubic root of 70666050 is about 413.4315402845.

70666050 divided by its sum of digits (30) gives a triangular number (2355535 = T2170).

The spelling of 70666050 in words is "seventy million, six hundred sixty-six thousand, fifty".