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390257742694 = 24313733123217
BaseRepresentation
bin1011010110111010010…
…11001001001101100110
31101022022201210102101011
411223131023021031212
522343221440231234
6455140521452434
740123644036331
oct5533513111546
91338281712334
10390257742694
1114056435a286
126377464111a
132aa55174851
1414c62373618
15a24149db64
hex5add2c9366

390257742694 has 16 divisors (see below), whose sum is σ = 603372539088. Its totient is φ = 189199809792.

The previous prime is 390257742691. The next prime is 390257742697. The reversal of 390257742694 is 496247752093.

It is an interprime number because it is at equal distance from previous prime (390257742691) and next prime (390257742697).

It is a super-2 number, since 2×3902577426942 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390257742691) 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, 16549827 + ... + 16573390.

It is an arithmetic number, because the mean of its divisors is an integer number (37710783693).

Almost surely, 2390257742694 is an apocalyptic number.

390257742694 is a deficient number, since it is larger than the sum of its proper divisors (213114796394).

390257742694 is a wasteful number, since it uses less digits than its factorization.

390257742694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33123399.

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 390257742694 in words is "three hundred ninety billion, two hundred fifty-seven million, seven hundred forty-two thousand, six hundred ninety-four".

Divisors: 1 2 43 86 137 274 5891 11782 33123217 66246434 1424298331 2848596662 4537880729 9075761458 195128871347 390257742694