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1378083480 = 233529396001
BaseRepresentation
bin101001000100011…
…1110001010011000
310120001002220010220
41102020332022120
510310242132410
6344425040040
746102342044
oct12210761230
93501086126
101378083480
1164798a574
12325626020
1318c676c17
14d1049024
1580eb6070
hex5223e298

1378083480 has 64 divisors (see below), whose sum is σ = 4276821600. Its totient is φ = 354816000.

The previous prime is 1378083457. The next prime is 1378083481. The reversal of 1378083480 is 843808731.

It is a super-2 number, since 2×13780834802 = 3798228155697820800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378083481) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 194521 + ... + 201480.

Almost surely, 21378083480 is an apocalyptic number.

1378083480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378083480 is an abundant number, since it is smaller than the sum of its proper divisors (2898738120).

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

1378083480 is a wasteful number, since it uses less digits than its factorization.

1378083480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396044 (or 396040 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 1378083480 is about 37122.5467876330. The cubic root of 1378083480 is about 1112.8206487248.

The spelling of 1378083480 in words is "one billion, three hundred seventy-eight million, eighty-three thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 29 30 40 58 60 87 116 120 145 174 232 290 348 435 580 696 870 1160 1740 3480 396001 792002 1188003 1584004 1980005 2376006 3168008 3960010 4752012 5940015 7920020 9504024 11484029 11880030 15840040 22968058 23760060 34452087 45936116 47520120 57420145 68904174 91872232 114840290 137808348 172260435 229680580 275616696 344520870 459361160 689041740 1378083480