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38329980 = 223513157313
BaseRepresentation
bin1001001000110…
…1111001111100
32200010100211220
42102031321330
534303024410
63445313340
7643541133
oct222157174
980110756
1038329980
111a6aa977
1210a05850
137c30680
14513a91a
153572070
hex248de7c

38329980 has 96 divisors (see below), whose sum is σ = 116687424. Its totient is φ = 9345024.

The previous prime is 38329933. The next prime is 38330003. The reversal of 38329980 is 8992383.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122304 + ... + 122616.

It is an arithmetic number, because the mean of its divisors is an integer number (1215494).

Almost surely, 238329980 is an apocalyptic number.

38329980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38329980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58343712).

38329980 is an abundant number, since it is smaller than the sum of its proper divisors (78357444).

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

38329980 is a wasteful number, since it uses less digits than its factorization.

38329980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 38329980 is about 6191.1210616495. The cubic root of 38329980 is about 337.1678817898.

The spelling of 38329980 in words is "thirty-eight million, three hundred twenty-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 157 195 260 313 314 390 471 626 628 780 785 939 942 1252 1565 1570 1878 1884 2041 2355 3130 3140 3756 4069 4082 4695 4710 6123 6260 8138 8164 9390 9420 10205 12207 12246 16276 18780 20345 20410 24414 24492 30615 40690 40820 48828 49141 61035 61230 81380 98282 122070 122460 147423 196564 244140 245705 294846 491410 589692 638833 737115 982820 1277666 1474230 1916499 2555332 2948460 3194165 3832998 6388330 7665996 9582495 12776660 19164990 38329980