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38678630656238 = 21741104309266003
BaseRepresentation
bin10001100101101100100100…
…00010100110100011101110
312001221122022021101102022222
420302312102002212203232
520032202313421444423
6214132415001235342
711101303344663266
oct1062662202464356
9161848267342288
1038678630656238
1111362573723701
124408217192b52
1318774c11bb821
1497a0acc367a6
154711bec3e3c8
hex232d920a68ee

38678630656238 has 32 divisors (see below), whose sum is σ = 62929917580320. Its totient is φ = 17757527434240.

The previous prime is 38678630656201. The next prime is 38678630656343. The reversal of 38678630656238 is 83265603687683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145273745 + ... + 145539747.

It is an arithmetic number, because the mean of its divisors is an integer number (1966559924385).

Almost surely, 238678630656238 is an apocalyptic number.

38678630656238 is a deficient number, since it is larger than the sum of its proper divisors (24251286924082).

38678630656238 is a wasteful number, since it uses less digits than its factorization.

38678630656238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370372.

The product of its (nonzero) digits is 1254113280, while the sum is 71.

The spelling of 38678630656238 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred thirty million, six hundred fifty-six thousand, two hundred thirty-eight".

Divisors: 1 2 17 34 41 82 697 1394 104309 208618 266003 532006 1773253 3546506 4276669 4522051 8553338 9044102 10906123 21812246 72703373 145406746 185404091 370808182 27746506927 55493013854 471690617759 943381235518 1137606784007 2275213568014 19339315328119 38678630656238