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38236990 = 2511347609
BaseRepresentation
bin1001000111011…
…1001100111110
32122221122021211
42101313030332
534242040430
63443315034
7643003051
oct221671476
978848254
1038236990
111a647020
121097ba7a
137bca24c
145114a98
15355472a
hex247733e

38236990 has 16 divisors (see below), whose sum is σ = 75083760. Its totient is φ = 13904320.

The previous prime is 38236973. The next prime is 38236997. The reversal of 38236990 is 9963283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38236997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173695 + ... + 173914.

It is an arithmetic number, because the mean of its divisors is an integer number (4692735).

Almost surely, 238236990 is an apocalyptic number.

38236990 is a deficient number, since it is larger than the sum of its proper divisors (36846770).

38236990 is a wasteful number, since it uses less digits than its factorization.

38236990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347627.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 38236990 is about 6183.6065528137. The cubic root of 38236990 is about 336.8950002640.

The spelling of 38236990 in words is "thirty-eight million, two hundred thirty-six thousand, nine hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 347609 695218 1738045 3476090 3823699 7647398 19118495 38236990