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1388084037 = 32391935961
BaseRepresentation
bin101001010111100…
…0111101101000101
310120201220222022220
41102233013231011
510320322142122
6345423242553
746253343144
oct12257075505
93521828286
101388084037
116525a009a
12328a49459
13191768b02
14d24cd75b
1581cde25c
hex52bc7b45

1388084037 has 8 divisors (see below), whose sum is σ = 1858523520. Its totient is φ = 921516960.

The previous prime is 1388084029. The next prime is 1388084099. The reversal of 1388084037 is 7304808831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1388084037 - 23 = 1388084029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1388084037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388089037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967264 + ... + 968697.

It is an arithmetic number, because the mean of its divisors is an integer number (232315440).

Almost surely, 21388084037 is an apocalyptic number.

It is an amenable number.

1388084037 is a deficient number, since it is larger than the sum of its proper divisors (470439483).

1388084037 is a wasteful number, since it uses less digits than its factorization.

1388084037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936203.

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

The square root of 1388084037 is about 37256.9998389564. Note that the first 3 decimals coincide. The cubic root of 1388084037 is about 1115.5060240768.

It can be divided in two parts, 138808 and 4037, that added together give a triangular number (142845 = T534).

The spelling of 1388084037 in words is "one billion, three hundred eighty-eight million, eighty-four thousand, thirty-seven".

Divisors: 1 3 239 717 1935961 5807883 462694679 1388084037