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70061750 = 2531173349
BaseRepresentation
bin1000010110100…
…00111010110110
311212211111122122
410023100322312
5120413434000
610541355542
71510341443
oct413207266
9155744578
1070061750
1136603480
121b568bb2
1311690975
14943a9ca
15623e085
hex42d0eb6

70061750 has 64 divisors (see below), whose sum is σ = 145454400. Its totient is φ = 25056000.

The previous prime is 70061723. The next prime is 70061773. The reversal of 70061750 is 5716007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200576 + ... + 200924.

It is an arithmetic number, because the mean of its divisors is an integer number (2272725).

Almost surely, 270061750 is an apocalyptic number.

70061750 is an abundant number, since it is smaller than the sum of its proper divisors (75392650).

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

70061750 is a wasteful number, since it uses less digits than its factorization.

70061750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 70061750 is about 8370.2897201949. The cubic root of 70061750 is about 412.2496797770.

Adding to 70061750 its reverse (5716007), we get a palindrome (75777757).

The spelling of 70061750 in words is "seventy million, sixty-one thousand, seven hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 73 110 125 146 250 275 349 365 550 698 730 803 1375 1606 1745 1825 2750 3490 3650 3839 4015 7678 8030 8725 9125 17450 18250 19195 20075 25477 38390 40150 43625 50954 87250 95975 100375 127385 191950 200750 254770 280247 479875 560494 636925 959750 1273850 1401235 2802470 3184625 6369250 7006175 14012350 35030875 70061750