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74688950 = 2527213397
BaseRepresentation
bin1000111001110…
…10100110110110
312012112120222102
410130322212312
5123110021300
611224502102
71564563020
oct434724666
9165476872
1074688950
1139183a06
122101a932
1312620b5b
149cc3010
1568550d5
hex473a9b6

74688950 has 24 divisors (see below), whose sum is σ = 158768112. Its totient is φ = 25607520.

The previous prime is 74688907. The next prime is 74688953. The reversal of 74688950 is 5988647.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74688895 and 74688904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74688953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106349 + ... + 107048.

It is an arithmetic number, because the mean of its divisors is an integer number (6615338).

Almost surely, 274688950 is an apocalyptic number.

74688950 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74688950 is an abundant number, since it is smaller than the sum of its proper divisors (84079162).

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

74688950 is a wasteful number, since it uses less digits than its factorization.

74688950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213416 (or 213411 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 74688950 is about 8642.2768990585. The cubic root of 74688950 is about 421.1325254232.

The spelling of 74688950 in words is "seventy-four million, six hundred eighty-eight thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 213397 426794 1066985 1493779 2133970 2987558 5334925 7468895 10669850 14937790 37344475 74688950